Image: Joseph Kennedy, 14 April 2007 [larger view].
Nikon D200, Kowa 883 telescope TSN-PZ camera eyepiece 1/200s f/8.0 at 500.0mm iso400.
Please name at least one field mark that supports your identification.
Rick Wright, Managing Director of WINGS Birding Tours Worldwide, writes:
A blue bird. With a short tail. A moderately short wing. And a thickish bill. Not much else matches that description than a male Indigo Bunting — and one that has attained full adult plumage, with a complete set of bright blue edgings on the flight feathers and wing coverts.
The classic confusion species is Blue Grosbeak, another member of the genus Passerina. But especially in a view like this, we’d see the shorter, darker, white-tipped tail of a Blue Grosbeak, the fatter body, the extensively rusty wings, the blacker face, and the more cardinal-like bill of that larger species. In poor light or at a distance, either species can appear simply blackish, but even then the shorter tail, bulkier body, and heavier bill of Blue Grosbeak should distinguish it readily from the slighter and more gracile Indigo Bunting.
Review all mystery birds to date.