Friday, September 30, 2022
HomeBirdDan Tallman’s Chook Weblog: Yellow-rumped Warbler

Dan Tallman’s Chook Weblog: Yellow-rumped Warbler


Erika and I noticed these Yellow-rumped Warblers on 24 February 2022 on the Billy Frank Jr Nationwide Wildlife Refuge. After we moved to Olympia, we didn’t anticipate to see each races of this hen—the white-throated Myrtle Warbler and the yellow-throated Audubon’s Warbler. Now we have at all times considered the Myrtle Warbler as an japanese hen, whereas Audubon’s are western. This assumption is mainly appropriate, however the Myrtle Warbler does breed in Alaska and northern British Columbia. Thus the 2 races do happen north of us right here in Washington and may be anticipated emigrate by the state. 

Though the 2 races interbreed within the restricted areas the place they overlap, ornithologists nonetheless argue in the event that they symbolize one or two species. The Audubon Society writes: “Though the white-throated Myrtle and yellow-throated Audubon’s varieties interbreed the place they meet, they’re very distinct genetically all through the remainder of their vary. The proof suggests that every is a full species.” The American Ornithological Society’s Guidelines Committee has but to agree.

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