Part of the male Bronzed Cowbird's courtship display is the fluffing of his head feathers while calling [April; Sick Dog Ranch, near Alice, Texas]
Red eyes help separate this Bronzed Cowbird from the more common Brown-headed Cowbird [April; Sick Dog Ranch, near Alice, Texas]
Female Bronzed Cowbirds lack the glossy black plumage and red eyes of the male [April; Sick Dog Ranch, near Alice, Texas]