American robins are year-round visitors to suburban and rural backyards. A male robin is often easier to identify than a female. Males have rust-colored feathers on their chest, a yellow bill, a black head, and white outlines around their eyes. They also have gray wings and backs. Female robins look similar to males, but their colors are much duller and sometimes blend together, making identification difficult. Males are also easier to identify because only male robins sing their "cheerily, cheer up" song. This song is usually heard in the early morning, before and after sunrise. Robins also sing at dusk or when it's about to rain. American robins live in woodlands, suburban backyards, parks, and grasslands with shrubs. Robins can be found year-round in the continental United States, and some migrate north to spend summers in Alaska. Squirrels, snakes, and other birds have been known to eat robin eggs and chicks. Predators to adult robins include hawks, snakes, and cats.