YellowstoneNPS:
Yellowstone Bird Program (28): Wildlife Biologist Lauren Walker releasing the spotted towhee
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Yellowstone Bird Program (24): Wildlife Biologist Lauren Walker measuring the wing of a spotted towhee
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Yellowstone Bird Program (23): Wildlife Biologist Lauren Walker examining a spotted towhee
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Yellowstone Bird Program (21): Wildlife Biologist Lauren Walker examines a white-crowned sparrow
YellowstoneNPS:
Yellowstone Bird Program (22): Biological Science Technician Keegan Burke releases a ruby-crowned kinglet
YellowstoneNPS:
Yellowstone Bird Program (20): Wildlife Biologist Lauren Walker measures the wing of a white-crowned sparrow
YellowstoneNPS:
Yellowstone Bird Program (19): Wildlife Biologist Lauren Walker examines the tail feathers of a red-naped sapsucker
YellowstoneNPS:
Yellowstone Bird Program (17): Wildlife Biologist Lauren Walker measures the wing of a red-naped sapsucker
YellowstoneNPS:
Yellowstone Bird Program (18): Wildlife Biologist Lauren Walker examines the wing of a red-naped sapsucker
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Yellowstone Bird Program (16): Wildlife Biologist Lauren Walker measures the wing of a Lincoln's sparrow
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Yellowstone Bird Program (15): Wildlife Biologist Lauren Walker bands a Lincoln's sparrow
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Yellowstone Bird Program (13): Biological Science Technician Mary Beth Albrechtsen holds a red-naped sap sucker after removing it from the net
YellowstoneNPS:
Yellowstone Bird Program (14): Wildlife Biologist Lauren Walker about to release a mountain chickadee
YellowstoneNPS:
Yellowstone Bird Program (12): Biological Science Technician Keegan Burke places the rub-crowned kinglet in a bag to be examined
YellowstoneNPS:
Yellowstone Bird Program (11): Biological Science Technician Keegan Burke removes a ruby-crowned kinglet from the net
YellowstoneNPS:
Yellowstone Bird Program (9): Wildlife Biologist Lauren Walker about to release a Wilson's warbler
YellowstoneNPS:
Yellowstone Bird Program (10): Wildlife Biologist Lauren Walker and Biological Science Technician Mary Beth Albrechtsen examine the wing of a red-naped sap sucker
YellowstoneNPS:
Yellowstone Bird Program (8): Wildlife Biologist Lauren Walker examines a Wilson's warbler
YellowstoneNPS:
Yellowstone Bird Program (7): Wildlife Biologist Lauren Walker bands a Wilson's warbler
YellowstoneNPS:
Yellowstone Bird Program (5): Biological Science Technician Keegan Burke glasses the area
YellowstoneNPS:
Yellowstone Bird Program (6): Wildlife Biologist Lauren Walker measures a Lincoln's sparrow's leg for banding
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Yellowstone Bird Program (4): Biological Science Technician Keegan Burke glasses the area
YellowstoneNPS:
Yellowstone Bird Program (2): Biological Science Technician Mary Beth Albrechtsen takes a chipping sparrow out of the net
YellowstoneNPS:
Yellowstone Bird Program: Biological Science Technician Mary Beth Albrechtsen takes a ruby-crowned kinglet out of the net
YellowstoneNPS:
Yellowstone Bird Program (3): Biological Science Technician Mary Beth Albrechtsen holds a chipping sparrow after removing it from the net