Observación realizada con binoculares y Guia Aves de México.en el bordo las maravillas
Rare summering bird in San Diego County. In constant full song.
The Black-and-white Warbler (Mniotilta varia) is a species of New World warbler, the only member of its genus, Mniotilta. It breeds in northern and eastern North America from the Northwest Territory and Newfoundland and Labrador, Canada to Florida. This species is migratory, wintering in Florida, Central America and the West Indies down to Peru. This species is a very rare vagrant to western Europe.