The Roseate Spoonbill (Platalea ajaja) lives in coastal wetlands from the southern United States south through Middle and South America. On the Pacific coast of the United States and northwestern Mexico, it is a local summer visitor and post-breeding wanderer, rare in Sonora (Russell and Monson 1998), very rare on the Baja California peninsula (Howell and Webb 1995, Amador and Ramirez 1996), and casual and irregular (primarily immature birds in the post-breeding period) in southern Arizona (Monson and Phillips 1981) and California (California Bird Records Committee 2007). The Roseate Spoonbill is currently a regular summer resident in Sonoran estuaries at least as far north as Estero Santa Cruz in Bahía Kino.