THE Cattle Egret (Bubulcus ibis) has been reported in all of the continental United States and in most of the southern provinces of Canada. Breeding colonies are established throughout the coastal Gulf states, along the Atlantic seaboard, as far north as Wisconsin and Ontario, and westward in Texas, Oklahoma, Arkansas, and California. The Cattle Egret's extension of range has been well documented, but very little information has been published on its reproduction.