A color marked Black-capped Chickadee (Poecile atricapilla) in a tree, Fairbanks, Alaska.
This chickadee is color banded so it can be identified individually in the field by biologists who study it.
Size: 5000px × 3442px
Photo credit: © David Shaw / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ak, america, aves, avian, banding, biology, bird, color, north, ornithology, perched, research, ringing, science, species, study, technique, tit, wildlife