Yellow-crowned Night Heron preening

Photo by Chris Bosak  A yellow-crowned night heron preens in Norwalk, Conn., summer 2017.

Photo by Chris Bosak
A yellow-crowned night heron preens in Norwalk, Conn., summer 2017.

Birds preen to keep their feathers clean, strong and in order. The barbs sometimes come unattached and, amazingly enough, they can reattach the barbs with their bills.

Here’s a shot of a yellow-crowned night heron caught in the act.

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