If We Can Rock Together, We Can Flock Together
10,000 Birds
FEBRUARY 28, 2012
Des Lacs National Wildlife Refuge, North Dakota. Some birds breed in flocks, at least in part to avoid predation. These Black-legged and Red-legged Kittiwakes only need to fear gulls and Peregrine Falcons , although bad weather and erosion do take their toll on nests. Flocks are formed for many reasons.
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