The 37-cent Snowy Egret definitive stamp was issued four times between the years 2003 and 2005. The stamp was designed by Carl T. Herrman, Carlsbad, California, and features artist Nancy Stahl's rendering of a snowy egret, which is considered one of the most beautiful American birds. The stamp art, based on photographs, depicts the head and upper body of a snowy egret against a blue background.
The snowy egret (Egretta thula) is a slender, white heron with black legs and bright yellow feet. This bird lives in marshes, swamps, and other wetlands. When flying or searching for food, it can curve its long neck into a compact "S" shape.