Sexual dichromatism in thrushes (IMAGE)
Caption
A study of thrushes offers new insight into the differences in the appearance of plumage between male and female birds. Plumage of the American robin, top left and center, differs in subtle ways between female birds, left, and male birds, center. European blackbirds, top and lower right, differ dramatically between males, top, and females, bottom, while male and female song thrushes, bottom left, have no obvious differences between the sexes.
Credit
Female American robin: Donna Dewhurst/USFWS; male American robin: photo by Mdf, CC BY-SA 3.0; female Eurasian blackbird: photo by Charles Sharp, CC BY-SA 4.0, sharpphotography.co.uk; male Eurasian blackbird: photo by Zeynel Cebeci, CC BY-SA 4.0; male and female song thrushes: photo by Tomas Grim.
Usage Restrictions
Credit must be given to the creator. Adaptations must be shared under the same terms.
License
CC BY-SA