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#chsp

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Brood Parasitism in action, this evening:
A juvenile #BrownHeadedCowbird begs food from an adult #ChippingSparrow likely a third of its size. Brown-headed Cowbirds are obligate breed parasites; that is, their young only develop in the nests of other birds. Chances are this one grew up in the sparrow's nest from which it either out-competed or displaced the sparrow's own young. Once it fledged, the sparrow remains convinced the cowbird is its own young and continues to feed it.
#Birds #BHCO #CHSP

On lightly-mulched soil, a tiny red-capped sparrow puts food into the vast beak of a larger, scaly-patterned grey songbird. Photo take in low light through a window.
The juvenile cowbird seizes the food, taking half the sparrow's head in its beak in the process.
Half-profile of the juvenile cowbird. It is grey-brown, very nondescript in color, with a pattern that's part-mottled, part-scaly. It has a grey-pink beak and gray legs, and stands on mulched soil that largely matches its color
The juvenile cowbird gapes and lunges towards a juvenile chipping sparrow, distinguished by its heavily flecked breast, which takes flight, heavily blurred in the foreground. While juvenile cowbird will beg from any bird, not everything will respond with food.
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