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What does CLSW stand for?

CLSW stands for Cliff Swallow (bird species Hirundo pyrrhonota)

This definition appears frequently and is found in the following Acronym Finder categories:

  • Science, medicine, engineering, etc.

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Samples in periodicals archive:

Now, their descendents snack at backyard bird feeders and aggressively evict flickers, bluebirds and other natives from their nests across the nation--just as house sparrows, introduced in 1853, harass native robins and displace bluebirds, purple martins and cliff swallows from their nesting sites, according to a 1999 Cornell University report.