
The world of birds seems to be full of endless surprises. Even the smallest and the most inconspicuous birds always seem to have surprising traits that catch avid birdwatchers by surprise. The Brown-headed Cowbird is a stout Blackbird that has fascinated ornithologists for a variety of reasons. For centuries they follow large bison herds on grasslands as they eat insects that are purged from the grass after it is grazed by the herds. Today, they continue to be seen as they follow cattle from coast to coast across North America.
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