Wilson's Warbler
Cardellina pusilla

f6.7 @ 1/640s, ISO:1250, Nikon D3S w 500mm and 1.7X teleconverter


"Wilson's Warbler," Wikipedia, the free encyclopedia. Wilson's warbler is a small New World warbler. It is greenish above and yellow below, with rounded wings and a long, slim tail. The male has a black crown patch; depending on the subspecies, that mark is reduced or absent in the female. It breeds across Canada and south through the western United States, and winters from Mexico south through much of Central America. It is a very rare vagrant to western Europe.
Sierra Vista, Arizona
 
04/24/2018