Chestnut-sided Warbler (Dendroica pensylvanica), My backyard, Tolleson, Maricopa County

This Chestnut-sided Warbler was discovered and  photographed by Bill Grossi on 20 November 2010 at his backyard feeding and watering area that has hosted many rarities over the years. 

Rare transient and winter visitor.  This is the 11th one documented on the AZFO site since 2006. 

Bright wingbars, green back, bright eye ring, gray breast and belly.  Distinctive habit of cocking its tail. 

20 November 2010, photo by Bill Grossi