Western gulls (chick shown below) nesting on South- 

 east Farallon Island. Populations of western gulls in 

 the Gulf of the Farallones since 1950 have benefited 

 from feeding at land-based dumpsites and fish-pro- 

 cessing plants, expanding from about 6.000 breeding 

 birds historically to more than 25.000 birds during the 

 early 1990s. (Photographs from Gulf of the Farallones 

 National Marine Sanctuary.) 



Seabirds 47 



