Ravens almost always congregate together at night, and that often means flying dozens of miles away from food sources only to return the next day, says Alaska science writer Ned Rozell.
A raven scans the horizon. Ravens are one of several animals known to gather together when resting at night.
As the sun set and the sky dimmed, the birds kept coming. At first, they looked like bats against the purple of the sky. Then they got closer, larger and chattier, some in groups of fives or sixes. The ravens, coming from the direction of Fairbanks more than 30 miles away, were probably headed to a communal roosting site for the night. In this case, that gathering place might have been the spruce hillside behind the cabin, farther than I could see. I imagined a group of trees decorated with black ornaments.Scientists in Anchorage, Fairbanks and outside Alaska have studied raven roosts.
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