"Courtship feeding has been observed in many species of songbirds, including Northern Cardinals, and this behavior typically occurs during pair formation.During courtship feedings, female cardinals assume a posture similar to that of begging fledglings and quiver their wings. Males respond to this display by approaching the female with food. The rate of courtship feeding, or perhaps the quality of food delivered by males, may provide females with important information about male quality. If so, courtship feeding is important in helping female cardinals choose their mates."
