Michael Durham Photography

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  • A wild Pinon mouse - (Peromyscus truei) photographed at night with an automated camera. Pinon mice have very specific habitat requirements - rocks and pinyon or juniper trees. Central Oregon is the northern limit of their range. Clarno unit of the John Day Fossil Beds National Monument, Central Oregon.
    pinyon_mouse_DurHM259_1.jpg
  • A wild Pinon mouse - (Peromyscus truei) photographed at night with an automated camera. Pinon mice have very specific habitat requirements - rocks and pinyon or juniper trees. Central Oregon is the northern limit of their range. Clarno unit of the John Day Fossil Beds National Monument, Central Oregon.
    pinyon_mouse_DurHM260.jpg
  • A wild mountain beaver (Aplodontia rufa) emerging from its burrow at night in the Mount Hood National Forest, Oregon.
    mountain_beaver_Aplodontia_rufa_MDur...jpg
  • A wild mountain beaver (Aplodontia rufa) emerging from its burrow at night in the Mount Hood National Forest, Oregon.
    mountain_beaver_Aplodontia_rufa_MDur...jpg
  • A wild mountain beaver (Aplodontia rufa) juvenile emerging from its burrow at night in the Mount Hood National Forest, Oregon.
    mountain_beaver_Aplodontia_rufa_MDur...jpg
  • A female red tree vole (Arborimus longicaudus) among Douglas fir needles. Red tree voles are rarely seen. They are nocturnal and live in Douglas fir tree tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle. Note the parasitic mites around the eye.
    Red_Tree_vole_21414rv-144.jpg
  • A female red tree vole (Arborimus longicaudus) among Douglas fir needles. Red tree voles are rarely seen. They are nocturnal and live in Douglas fir tree tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle. Note the parasitic mites around the eye.
    Red_Tree_vole_21414rv-143.jpg
  • A male red tree vole (Arborimus longicaudus) among Douglas fir needles. Red tree voles are rarely seen. They are nocturnal and live in Douglas fir tree tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    Red_Tree_vole_21414rv-272.jpg
  • A female red tree vole (Arborimus longicaudus) among Douglas fir needles. Red tree voles are rarely seen. They are nocturnal and live in Douglas fir tree tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    Red_Tree_vole_21414rv-228.jpg
  • A female red tree vole (Arborimus longicaudus) among Douglas fir needles. Red tree voles are rarely seen. They are nocturnal and live in Douglas fir tree tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    Red_Tree_vole_21414rv-132.jpg
  • A male red tree vole (Arborimus longicaudus) among Douglas fir needles. Red tree voles are rarely seen. They are nocturnal and live in Douglas fir tree tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    Red_Tree_vole_21414rv-270.jpg
  • A young (31day old) red tree vole (Arborimus longicaudus) eating a Douglas fir needle. Red tree voles are rarely seen. They are nocturnal and live in Douglas fir tree tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    Red_Tree_vole_21414rv-245.jpg
  • A male red tree vole (Arborimus longicaudus) among Douglas fir needles. Red tree voles are rarely seen. They are nocturnal and live in Douglas fir tree tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    Red_Tree_vole_21414rv-150.jpg
  • A male red tree vole (Arborimus longicaudus) among Douglas fir needles. Red tree voles are rarely seen. They are nocturnal and live in Douglas fir tree tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    Red_Tree_vole_21414rv-134.jpg
  • A female red tree vole (Arborimus longicaudus) among Douglas fir needles. Red tree voles are rarely seen. They are nocturnal and live in Douglas fir tree tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    Red_Tree_vole_21414rv-127.jpg
  • A male red tree vole (Arborimus longicaudus) among Douglas fir needles. Red tree voles are rarely seen. They are nocturnal and live in Douglas fir tree tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    Red_Tree_vole_21414rv-263.jpg
  • A young (31day old) red tree vole (Arborimus longicaudus) eating a Douglas fir needle. Red tree voles are rarely seen. They are nocturnal and live in Douglas fir tree tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    Red_Tree_vole_21414rv-246.jpg
  • A young (31day old) red tree vole (Arborimus longicaudus) eating a Douglas fir needle. Red tree voles are rarely seen. They are nocturnal and live in Douglas fir tree tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    Red_Tree_vole_21414rv-242.jpg
  • A male red tree vole (Arborimus longicaudus) among Douglas fir needles. Red tree voles are rarely seen. They are nocturnal and live in Douglas fir tree tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    Red_Tree_vole_21414rv-220.jpg
  • A male red tree vole (Arborimus longicaudus) among Douglas fir needles. Red tree voles are rarely seen. They are nocturnal and live in Douglas fir tree tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    Red_Tree_vole_21414rv-219.jpg
  • A male red tree vole (Arborimus longicaudus) among Douglas fir needles. Red tree voles are rarely seen. They are nocturnal and live in Douglas fir tree tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    Red_Tree_vole_21414rv-206.jpg
  • A male red tree vole (Arborimus longicaudus) eating a Douglas fir needle. Red tree voles are rarely seen. They are nocturnal and live in Douglas fir tree tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    Red_Tree_vole_21414rv-197.jpg
  • A male red tree vole (Arborimus longicaudus) eating a Douglas fir needle. Red tree voles are rarely seen. They are nocturnal and live in Douglas fir tree tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    Red_Tree_vole_21414rv-153.jpg
  • A female red tree vole (Arborimus longicaudus) among Douglas fir needles. Red tree voles are rarely seen. They are nocturnal and live in Douglas fir tree tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    Red_Tree_vole_21414rv-140.jpg
  • A female red tree vole (Arborimus longicaudus) among Douglas fir needles. Red tree voles are rarely seen. They are nocturnal and live in Douglas fir tree tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    Red_Tree_vole_21414rv-138.jpg
  • A female red tree vole (Arborimus longicaudus) among Douglas fir needles. Red tree voles are rarely seen. They are nocturnal and live in Douglas fir tree tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    Red_Tree_vole_21414rv-124.jpg
  • A female red tree vole (Arborimus longicaudus) among Douglas fir needles. Red tree voles are rarely seen. They are nocturnal and live in Douglas fir tree tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    Red_Tree_vole_21414rv-123.jpg
  • A female red tree vole (Arborimus longicaudus) among Douglas fir needles. Red tree voles are rarely seen. They are nocturnal and live in Douglas fir tree tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    Red_Tree_vole_21414rv-121.jpg
  • A young (31day old) red tree vole (Arborimus longicaudus) among Douglas fir needles. Red tree voles are rarely seen. They are nocturnal and live in Douglas fir tree tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    Red_Tree_vole_21414rv-241.jpg
  • A male red tree vole (Arborimus longicaudus) eating a Douglas fir needle. Red tree voles are rarely seen. They are nocturnal and live in Douglas fir tree tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    Red_Tree_vole_21414rv-192.jpg
  • A male red tree vole (Arborimus longicaudus) among Douglas fir needles. Red tree voles are rarely seen. They are nocturnal and live in Douglas fir tree tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    Red_Tree_vole_21414rv-174.jpg
  • A male red tree vole (Arborimus longicaudus) among Douglas fir needles. Red tree voles are rarely seen. They are nocturnal and live in Douglas fir tree tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    Red_Tree_vole_21414rv-152.jpg
  • A female red tree vole (Arborimus longicaudus) among Douglas fir needles. Red tree voles are rarely seen. They are nocturnal and live in Douglas fir tree tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    Red_Tree_vole_21414rv-133.jpg
  • A female red tree vole (Arborimus longicaudus) among Douglas fir needles. Red tree voles are rarely seen. They are nocturnal and live in Douglas fir tree tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    Red_Tree_vole_21414rv-109.jpg
  • A male red tree vole (Arborimus longicaudus) among Douglas fir needles. Red tree voles are rarely seen. They are nocturnal and live in Douglas fir tree tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    Red_Tree_vole_21414rv-278.jpg
  • A male red tree vole (Arborimus longicaudus) among Douglas fir needles. Red tree voles are rarely seen. They are nocturnal and live in Douglas fir tree tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    Red_Tree_vole_21414rv-268.jpg
  • A male red tree vole (Arborimus longicaudus) among Douglas fir needles. Red tree voles are rarely seen. They are nocturnal and live in Douglas fir tree tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    Red_Tree_vole_21414rv-257.jpg
  • A young (31day old) red tree vole (Arborimus longicaudus) eating a Douglas fir needle. Red tree voles are rarely seen. They are nocturnal and live in Douglas fir tree tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    Red_Tree_vole_21414rv-247.jpg
  • A female red tree vole (Arborimus longicaudus) among Douglas fir needles. Red tree voles are rarely seen. They are nocturnal and live in Douglas fir tree tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    Red_Tree_vole_21414rv-110.jpg
  • A male red tree vole (Arborimus longicaudus) eating a Douglas fir needle. Red tree voles are rarely seen. They are nocturnal and live in Douglas fir tree tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    Red_Tree_vole_21414rv-173.jpg
  • A male red tree vole (Arborimus longicaudus) eating a Douglas fir needle. Red tree voles are rarely seen. They are nocturnal and live in Douglas fir tree tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    Red_Tree_vole_21414rv-172.jpg
  • A female red tree vole (Arborimus longicaudus) among Douglas fir needles. Red tree voles are rarely seen. They are nocturnal and live in Douglas fir tree tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    Red_Tree_vole_21414rv-135.jpg
  • A female red tree vole (Arborimus longicaudus) among Douglas fir needles. Red tree voles are rarely seen. They are nocturnal and live in Douglas fir tree tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    Red_Tree_vole_21414rv-106.jpg
  • A red tree vole (Arborimus longicaudus) eamong discarded resin ducts from Douglas fir needles. Red tree voles are rarely seen. They are nocturnal and live in Douglas-fir tree-tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    22514rv-256.jpg
  • A red tre vole (Arborimus longicaudus) mom and her 30 day old offspring. Red tree voles are nocturnal and live in Douglas fir tree-tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    22514rv-236.jpg
  • A red tree vole (Arborimus longicaudus) eamong discarded resin ducts from Douglas fir needles. Red tree voles are rarely seen. They are nocturnal and live in Douglas-fir tree-tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    22514rv-254.jpg
  • A young red tree vole (Arborimus longicaudus) travels through a passage in a nest made from the discarded resin ducts from Douglas-fir needles; a byproduct of their diet. Fresh, uneaten fir needles are also present. Red tree voles are nocturnal and live in Douglas fir tree-tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    22514rv-252.jpg
  • A red tre vole (Arborimus longicaudus) mom and her 30 day old offspring. Red tree voles are nocturnal and live in Douglas fir tree-tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    22514rv-234.jpg
  • A red tree vole (Arborimus longicaudus) stripping away the resin duct from a Douglas fir needle. Red tree voles are rarely seen. They are nocturnal and live in Douglas fir tree tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    22514rv-213.jpg
  • A red tree vole (Arborimus longicaudus) sleeps in a nest made from the discarded resin ducts from Douglas-fir needles, Fresh, uneaten needle clippings are also present. Red tree voles are nocturnal and live in Douglas fir tree-tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    22514rv-273.jpg
  • Freshly discarded resin ducts from Douglas-fir needles. These are byproducts of red tree voles (Arborimus longicaudus) feeding on the needles. Red tree voles are rarely seen. They are nocturnal and live in Douglas fir tree tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    22514rv-250.jpg
  • A red tre vole (Arborimus longicaudus) mom and her 30 day old offspring. Red tree voles are nocturnal and live in Douglas fir tree-tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    22514rv-231.jpg
  • A red tree vole (Arborimus longicaudus) eating a Douglas fir needle. Red tree voles are rarely seen. They are nocturnal and live in Douglas fir tree tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    22514rv-205.jpg
  • A red tree vole (Arborimus longicaudus) hides in a nest made from the discarded resin ducts from Douglas-fir needles; a byproduct of their diet. Fresh, uneaten fir needles are also present. Red tree voles are nocturnal and live in Douglas fir tree-tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    22514rv-271.jpg
  • A red tre vole (Arborimus longicaudus) mom and her 30 day old offspring. Red tree voles are nocturnal and live in Douglas fir tree-tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    22514rv-237.jpg
  • A red tre vole (Arborimus longicaudus) mom and her 30 day old offspring. Red tree voles are nocturnal and live in Douglas fir tree-tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    22514rv-229.jpg
  • A young red tree vole (Arborimus longicaudus). Red tree voles are rarely seen. They are nocturnal and live in Douglas fir tree tops and almost never come to the forest floor.  They are one of the few animals that can persist on a diet of conifer needles which is their principle food.  As a defense mechanism, conifer trees have resin ducts in their needles that contain chemical compounds (terpenoids) that make them unpalatable to animals.  Tree voles, however, are able to strip away these resin ducts and eat the remaining portion of the conifer needle.
    22514rv-183.jpg
  • A pair of young bushy-tailed woodrats (Neotoma cinera) get into a scrap - at night in Camp Creek Canyon in The Natuer Conservancy's Zumwalt Prairie Perserve. NE Oregon.
    bushy_woodrat_night_DurHM196.jpg
  • A pair of young bushy-tailed woodrats (Neotoma cinera) get into a scrap - at night in Camp Creek Canyon in The Natuer Conservancy's Zumwalt Prairie Perserve. NE Oregon.
    playing_woodrat_DurHM244.jpg
  • A western harvest mouse (Reithrodontomys megalotis) forages for food under a penstemon shrub. The Natuer Conservancy's Zumwalt Prairie Preserve in NE Oergon.
    western_harvest_mouse_DurHM191.jpg
  • Portrait of a deer mouse (Peromyscus maniculatus), this wild mouse was held temporarily captive. Forest Park, Oregon.
    deer_mouse-MDurham292_8.jpg
  • A deer mouse (Peromyscus maniculatus) in the midst of an evasive jump. When threatened, these mice will reflexively jump into the air to avoid being caught.
    jumping_mouse_MDurham519_38.jpg
  • A deer mouse (Peromyscus maniculatus) in the midst of an evasive jump. When threatened, these mice will reflexively jump into the air to avoid being caught.
    jumping_mouse_MDurham512_37.jpg
  • A bushy-tailed woodrat (Neotoma cinera) runs along scree - at night in Camp Creek Canyon in The Nature Conservancy's Zumwalt Prairie Perserve. NE Oregon.
    jumping_woodrat_DurHM245.jpg
  • A deer mouse (Peromyscus maniculatus) in the midst of an evasive jump. When threatened, these mice will reflexively jump into the air to avoid being caught.
    jumping_mouse_MDurham513_37.jpg
  • An ord's kangaroo rat (Dipodomys ordii) jumping at night. Ochoco National Forest, Oregon.
    jumping_kangaroo_rat_61607KR-1.jpg
  • Norway rat(s) (Rattus Norvegicus) emerging from a rat hole in a suburban yard at night. Portland, Oregon. © Michael Durham / www.DurmPhoto.com
    urban_rat-71412RR2-221.jpg
  • Norway rat(s) (Rattus Norvegicus) emerging from a rat hole in a suburban yard at night. Portland, Oregon. © Michael Durham / www.DurmPhoto.com
    urban_rat-71412RR-184.jpg
  • Norway rat(s) (Rattus Norvegicus) emerging from a rat hole in a suburban yard at night. Portland, Oregon. © Michael Durham / www.DurmPhoto.com
    urban_rat-71412RR2-179.jpg
  • Norway rat(s) (Rattus Norvegicus) emerging from a rat hole in a suburban yard at night. Portland, Oregon. © Michael Durham / www.DurmPhoto.com
    urban_rat-71412RR-188.jpg
  • Norway rat(s) (Rattus Norvegicus) emerging from a rat hole in a suburban yard at night. Portland, Oregon. © Michael Durham / www.DurmPhoto.com
    urban_rat-71412RR2-173.jpg
  • A deer mouse (Peromyscus maniculatus) eating a seed under a juniper tree at night. John Day Fossil Beds National Monument, Clarno Unit. Oregon.
    deer_mouse_71406Py2.jpg
  • A deer mouse (Peromyscus maniculatus) under a juniper tree at night. John Day Fossil Beds National Monument, Clarno Unit. Oregon.
    deer_mouse_71406Py1.jpg
  • Norway rat(s) (Rattus Norvegicus) emerging from a rat hole in a suburban yard at night. Portland, Oregon. © Michael Durham / www.DurmPhoto.com
    urban_rat-71412RR-233.jpg
  • Norway rat(s) (Rattus Norvegicus) emerging from a rat hole in a suburban yard at night. Portland, Oregon. © Michael Durham / www.DurmPhoto.com
    urban_rat-71412RR-212.jpg
  • Norway rat(s) (Rattus Norvegicus) emerging from a rat hole in a suburban yard at night. Portland, Oregon. © Michael Durham / www.DurmPhoto.com
    urban_rat-71412RR-206.jpg
  • Norway rat(s) (Rattus Norvegicus) emerging from a rat hole in a suburban yard at night. Portland, Oregon. © Michael Durham / www.DurmPhoto.com
    urban_rat-71412RR-182.jpg
  • A bushy-tailed woodrat (Neotoma cinera) at night in Camp Creek Canyon in The Natuer Conservancy's Zumwalt Prairie Perserve. NE Oregon.
    bushy_woodrat_night_DurHM194.jpg
  • A brown rat (Rattus norvegicus) on a street curb at night in a residential neigborhood. Portland, Oregon. These rats are not native, but are european in origin and have followed human settlements around the world.
    city_rat_DurHM143.jpg
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