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Shows With Contributions by Carl Kjellstrand

61 Tons of Robins!

In winter, flocks of American Robins spend the night together. Typically, a few dozen to a few hundred birds roost communally in trees or an old barn, or under a bridge. But larger robin roosts can number in the thousands, or even tens of thousands! In 2007, observers near St. Petersburg, Florida... read more »

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Topics & Themes:  ecology, migration, science
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