http://www.worldbirdingcenter.org/worldbirdingcenter/bird_info/green_kingfisher.phtml

Uncommon resident along rivers, resacas, and irrigation ditches throughout the Valley. Fairly common, although often inconspicuous, along large forested tracts of the Rio Grande. I found this one in a Huisatche tree along a drainage ditch in the City of McAllen.