Black-throated Blue Warbler (Setophaga caerulescens), Santa Cruz Flats, Pima County

This Black-throated Blue Warbler was found by Tom Martin, Ron Jennings, Bob Benning, and Diane Stone and photographed by Tom Martin on 28 November 2014

Casual migrant (mainly fall and typically in October or later) and winter visitor. 

Dirty blue above, white below, broad black mask tapers downward to sides of upper breast, large white "check" on wings.

28 November 2014, photo by Tom Martin

All photos are copyrighted© by photographer