Birders affectionately refer to this species as “butter-butt,” since its bright yellow rump is an eye-catching and diagnostic field mark throughout the year.
Yellow-rumped Warbler
PHOTOS BY LISA COMER
PHOTOS BY LISA COMER
Birders affectionately refer to this species as “butter-butt,” since its bright yellow rump is an eye-catching and diagnostic field mark throughout the year.
IN MY VIEWFINDER 
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