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Cliff Swallow Nests

By Rudy Mancke
Published July 24, 2020 at 5:30 AM EDT
Cliff swallows nesting under a bridge.
Marlin Harms, via Wikimedia Commons
Cliff swallows nesting under a bridge.

Cliff swallows build gourd-shaped nests made from mud with small entrance holes. They build their nests tightly together, on top of one another, under bridges or alongside mountain cliffs. Living in large populations, these aerial insectivores use extensive vocalizations to communicate warnings or food availability to the other individuals.

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Rudy Mancke
Rudy Mancke served as naturalist and co-host of South Carolina ETV's <i>NatureScene</i>, which began its long run in 1978. His field trips, broadcast nationwide, earned him a legion of dedicated viewers. Rudy's knowledge of the complex inner-workings of different ecosystems and his great admiration for the natural world make him the perfect guide. In fact, the National Wildlife Federation and the Garden Club of America honored his commitment to resource conservation with special awards. After retiring from SCETV, Rudy went on to become naturalist-in-residence at the University of South Carolina, Columbia. He hosted SC Public Radio's <i>NatureNotes</i> from 1999 until his death in 2023 at age 78.
See stories by Rudy Mancke