American Robin (Turdus migratorius) Turdidae
Council Grove State Park, MT
March 16, 2015
Robert Niese
Although American Robins are one of North America’s most ubiquitous birds, there are a few things most people don’t know about these abundant creatures. For example, did you know that males and females show a slight dimorphism? Males tend to have blacker heads and redder breasts which females use as an indicator of the health of potential mates.
Northwest Naturalist 