Just stumbled upon this update from the Ventana Wildlife Society on its California Condor nests. It's a little old (August), but very interesting:
By Garrison Frost
November 08, 2009
A New Colony of Caspian Tern Decoys on Aramburu Island
Richardson Bay Audubon Center is attacting breeding pairs of Caspian Terns with these newly painted tern decoys—a strategy successfully used by previous tern relocation efforts.