Although variable, all yellow-rumped warblers possess a ... United States south through Caribbean to western Panama. Vagrant: the “Audubon’s” Warbler is casual in eastern North America.
Keep an eye on the birds and look for a yellow patch on the rump, which gives away their identification as yellow-rumped warblers ... a zone 80 miles wide in western Canada.
These well-known birds of about five inches in length are Kansas’ most common warbler, according to The ... of migrants should be joining the few yellow rumps that wintered in Kansas.