![]() ![]() Look similar to females or immature males when not breeding. Females are dull grey-brown with some streaking on the breast and a white throat and belly. This difference between male and female appearance is called sexual dimorphism. Immature males tend to be mostly blue with some brown throughout. Interestingly, the feathers contain no blue pigment at all, but seem blue due to the diffraction of light (Deinlein). During breeding season, adult males appear to have bright blue feathers that can look black in some lighting. The head and wings are a darker blue than the body. ![]() It weighs approximately 0.4-0.6 ounces, with a length of 4.77-5.1 inches and wingspan of 7.5-8.7 inches (All About Birds). The Indigo Bunting ( Passerina cyanea) is a small bird of the family Cardinalidae. Content for this page researched and created by Danielle Leeman ![]()
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