C/S:   Couch's Kingbird     Tyrannus Couchii       Av. Size:   9 in (23 cm)       Sounds:   shrill, rolling breeeer or kip (NG)       Identifying Characteristics:   grey head, dark yellow breast, lighter in color at throat, greyish/brownish-olive on back       Similar to/Compare with:   Tropical Kingbird's tail is slightly more forked       Range:   S Texas, along Gulf Coast to Yucatan, Belize, and Guatemala       Habitat:   scrub trees       Other Info/Notes on Photo:   ID was based on shape of tail, not its voice, so I am not certain of it being a CK.