Although variable, all yellow-rumped warblers possess a bright yellow rump ... peaking in northern portions of nonbreeding range in late September–mid-October. Winter: a wide variety of habitats ...

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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Yellow-rumped warblers often forage for food on outer tree canopies at middle heights, which happened to be where this bird was. Yellow-rumped warblers are active birds, which is important to know ...