Cliff Swallow Nests


photograph of Cliff Swallow nests under the eaves of a building in Yellowstone National ParkCliff Swallows like to build their mud nests up high, out of reach of potential predators.  As their name implies, they frequently nest along steep cliffs.  This small colony of Cliff Swallows took advantage of the eaves of a public restroom and built their nests all along the back of the building.

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