Color preferences in the pecking response of newly hatched ducks (An as platyrhychos).
D000222:Adaptation, Physiological; D000818:Animals; D003116:Color; D003118:Color Perception; D003463:Cues; D004192:Discrimination, Psychological; D004372:Ducks; D005374:Filtration; D008027:Light; D012160:Retina / Q000502:physiology; D012932:Social Facilitation; D014796:Visual Perception