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American Robin
American robins, photographed at Green Cay Nature Center , Boynton Beach, Palm Beach County, in February 2013.
robin perched

Robins, Turdus migratorius, are the quintessential early bird, and depending where you live, the first sign of spring. And yes, they do get the worm. Lots of them. It's a staple of their diet, in fact.

if you've lived most anywhere up north, robins are so common that they are part of the scenery during the spring and summer. They are a given. Here in the Sunshine State, however, it's different story.

We've lived in South Florida for 27 years and happened on a robin only once — in February 2013 when a large flock of them came to roost and feed on berries at Green Cay Nature Center in Boynton Beach. There were literally hundreds of robins throughout the preserve, as if on a single day they had made up for years of absense.

The explanation, in part at least, is robin behavior. Up north in the spring and summer, robins are territorial. Males declare their turf and defend it against other males. The population in a given area is stable. In the fall, however, robins become social, gathering in huge flocks to prepare for the flight south. Once here, they stick together, and instead of being territorial, they form nomadic bands. Here to day. Gone tomorrow. Literally.

Robins are members of the thrush family, Turdidae, and are easily identified by their red-orange breast. They're large as song birds go, with a body length approaching a foot. Males tend to be a bit brighter than females; east coast robins more colorful than their west coast counterparts. They're found throughout North America to its northern-most reaches, southward to Mexico and parts of Central America, where they also spend the winter.

If you see an adult robin, you're looking at a creature that's survived some pretty long odds. A female robin will lay three to five eggs in a cup-like nest made of mud and grass and sticks.

robin another view

She can produce as many as three broods a year. However, only 40 percent of nests produce young robins. Of those who survive to fledge, only a quarter will live long enough to see October turn into November.

According to Cornell Labs, half the robin population dies within a year; the entire population turns over in six years. Individuals, however, can live 14 years with some luck.

Although robins are hardwired to migrate, not all do soth. Some, males more likely than females, will winter over. Males if they do migrate, are less likely to make it this far south. Remember, they have territory to defend, while females need to build their bodies for breeding season. Where robins migrate also can vary; one year Texas, the next year, Florida. And vice versa.

Earthworms, as mentioned, are a staple of a robin's diet, but they also eat other bugs and lots of fruit. They tend to eat more worms in the morning, more fruit in the evening. They also eat other kinds of bugs and very occasionally small snakes and shrews. Yum.

Photographs by David Sedore
More Links for American Robin Cornell Laboratory of Ornithology National Audubon Society National Geographic
Unless otherwise stated, all photographs are property of the publishers and may not be used without their express permission.