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Red-crowned Parrots at Irvine Regional Park, Orange County, California

10,000 Birds

Quite a few species are well-established and breeding from San Diego to Los Angeles and beyond. climate, vegetation, food, shelter, competitors, predators) to the species’ natural habitat, or to other successful introductions, that permanent establishment seems likely.

Parrots 211
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Cliff Swallows and Pest Management

10,000 Birds

In addition to their homing tendency, breeding swallows are attracted to old nests. Completed nests during this breeding season cannot be touched without a permit from the U.S. Salmon, UC Cooperative Extension, San Diego Co.; Under suitable conditions, a nest is quite durable and can be used in successive years.

San Diego 165