[Mystery bird] Rose-Breasted Grosbeak, sometimes known as the Red-breasted Grosbeak, Pheucticus ludovicianus, photographed in Houston, Texas. [I will identify this bird for you in 48 hours]
Image: Joseph Kennedy, 12 April 2010 [larger view].
Nikon D200, Kowa 883 telescope with TSN-PZ camera eyepiece 1/200s f/8.0 at 1000.0mm iso400.
Please name at least one field mark that supports your identification.
Beginning birders: can you name the species?
Intermediate birders: can you name the bird whose song is sometimes mistaken for this species’ song?
Advanced birders: can you name at least one other species that you will find breeding in the same type of habitat as this species?