The yellow-rumped’s unique ability to digest the waxes in bayberries allows it to winter farther north than other warblers. Built in June on the fork of a horizontal conifer branch near the ...
The western is the only regular North American tanager ... yellow rump, black back, and conspicuous wing bars contrast with black wings (yellow upper bar, lower white bar) and bright ...
They analyzed 28 bird species such as Blackpoll and Yellow-rumped warblers and measured the elevations of their distribution along 42 mountainsides in the White Mountains of New Hampshire from ...
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