[Mystery bird] Indigo Bunting, Passerina cyanea, photographed on High Island, Texas. [I will identify this bird for you in 48 hours]
Image: Joseph Kennedy, 7 April 2009 [larger view].
Nikon D200, Kowa 883 telescope with tsn-pz camera eyepiece 1/400s f/8.0 at 1000.0mm iso400.
Please name at least one field mark that supports your identification.