September 26, 2016

Junco featheration

September 26, 2016/ Abby McBride

Juncos at different elevations in NW mountains differ in feather melanism/microstructure https://t.co/nE63RBZFbz #ornithology pic.twitter.com/pDAQShtj3d
— American Ornithology (@AmOrnith) September 22, 2016

© Abby McBride
abbymcb@alum.mit.edu

@SKETCHBIOLOGIST

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Top photo credit: Otto Whitehead