The Cardinal

Cardinals, also called "redbirds," do not migrate and have traditionally been more common in warmer climes such as the U.S. southeast. However, in recent decades they have expanded their common range north through the United States and even into Canada. This population growth may be due to an increase in winter birdfeeders and to the bird's ability to adapt to parks and suburban human habitats.

Only males sport the brilliant red plumage for which their species is known. The color is a key to mating success—the brighter the better. Females are an attractive tan/gray.

Read more: National Geographic - Cardinal