Erika and also I saw these Yellow-rumped Warblers on 24 February 2022 at the Billy Frank Jr National Wild Animals Haven. When we transferred to Olympia, we did not anticipate to see both races of this bird– the white-throated Myrtle Warbler and also the yellow-throated Audubon’s Warbler. We have actually constantly considered the Myrtle Warbler as an eastern bird, while Audubon’s are western. This presumption is essentially proper, however the Myrtle Warbler does reproduce in Alaska and also north British Columbia. Hence both races do take place north people right here in Washington and also can be anticipated to move via the state.
Although both races interbreed in the minimal locations where they overlap, ornithologists still say if they stand for a couple of varieties. The Audubon Culture creates: “Despite the fact that the white-throated Myrtle and also yellow-throated Audubon’s kinds interbreed where they fulfill, they’re really unique genetically throughout the remainder of their variety. The proof recommends that each is a complete varieties.” The American Ornithological Culture’s List Board has yet to concur.
