Is there a songbird in North America that is more recognizable than the American robin? Bluejays give them a good run for the title, but I still think robins are more well known. I may be slightly biased, though, because my mom’s name is Robin — but my point is robins are very common birds, and yet it’s taken me four years to write about them. Time to fix that!
American robins are well-known in North America because they are widespread across the continent. They can be found year-round in the southern parts of Canada, throughout the US and into Mexico. Robins travel as far south as southern Mexico during the winter, and head north to the Canadian Territories and Alaska in the summer. Robins are at home in a variety of habitats, though they like short grass and open ground, with trees or shrubs for perching and nesting. Many suburban and agricultural areas provide ideal habitats for robins, which is why they are so common in populated areas.
Robins are not overly large birds, ranging from 23 to 28 cm in length, with wingspans of up to 41 cm. They have dark grey or black heads and wings, with white markings on their throats and around their eyes. Their bills are yellow, and they have brown legs and feet. Of course, you probably know that robins have red breasts, but just in case you didn’t, I drew this picture to emphasize it.
Robins are gregarious birds, roosting together in large flocks at nighttime. During the day, the flocks break up into smaller feeding groups. American robins feed on a wide variety of foods, including insects, fruits, and berries. They hunt insects using sight and sound, hopping around on the ground and then cocking their heads to listen fro their prey. Though insects make up a large portion of their diet, berries and fruits tend to be the staple of the robin’s diet. This is quite advantageous for the birds, as they can winter farther north than other similar species, thanks to their varied diet.
After the birds finish their migrations in the spring, breeding starts. The breeding season starts in April and lasts into July. They lay their first clutch very early in the season, and often will have two or three broods each year. Robins build nests in bushes, trees or on manmade structures, usually five to fifteen feet off the ground. Nests are not reused; the robins must build a new nest for each brood they raise (apparently robins are not very efficient).
Clutch sizes vary from three to five eggs, which hatch after about two weeks. Female robins will continue to brood their young for a few days after hatching, and then will only brood during bad weather. Two weeks after they hatch, the young birds leave the nest, though they are still dependent on their parents for food and protection during this time. Robin chicks learn to fly quite quickly, and are able to sustain flight two weeks after fledging.
Unfortunately for robins, they are susceptible to predation. Only 25% of American robins make it through their first year. Robin eggs and chicks are preyed upon by squirrels, snakes, and other birds, such as blue jays, grackles, and crows. Robin parents protect their eggs by mobbing predators, as well as making chirping warning calls. Adult robins are themselves the targets of predators, falling victim to hawks, cats, and snakes.
Despite high levels of predation, American robin numbers are still doing just fine. They are one of the most abundant land birds in North America, with an estimated population of 320 million. They used to be killed for their meat, but have since become protected by the Migratory Birds Act, so all is well in the world of robins. As a final note, I would like to point out that the genus name of the American name is Turdus. Maybe I’m being immature, but I think turdus is a pretty funny name…
Cover image credit: Arustleund via Wikipedia