Re: Bird trap on Aliso and Wood Canyon Trail

Trude Hurd

Hi Alex,

An endangered species called Least Bell’s Vireo nests along creeks, and its nests can be parasitized by Brown-headed Cowbirds.  These type of traps are put up by licensed biological consulting firms to remove cowbirds from areas in Orange County where endangered songbirds nest.  We have them at the San Joaquin Wildlife Sanctuary. The traps are only up during nesting season and any birds other than cowbirds are removed and released.  So those Brewer’s Blackbirds get a free meal and lodging for the day!

Trude Hurd, Project Director of Education, Sea and Sage Audubon Society.

Join to automatically receive all group messages.