Gulls Laridae
Gulls are closely related to terns Sternidae and skimmers Rhynchopidae and some authors lump them all in the Laridae family. These medium to large-sized birds are divided into 7 genera, of which 2 are listed below. Of the 51 species, the Black-billed Gull Larus bulleri is considered endangered. Another 5 species are listed as vulnerable and 4 are near-threatened. Members of this family inhabit temperate shorelines around the world.

Larus

There are 44 species within this genus.

Laughing Gull Larus atricilla at Rio Lagartos, Yucatan, Mexico, April 2003.


Black-headed Gull Larus ridibundus at Cley-next-the-Sea, Norfolk, England, June 2009.





There are 44 species within this genus.

Franklin's Gull Larus pipixican at Twin Lakes, Willcox, Cochise County, Arizona, July 2007.


Great Black-backed Gull Larus marinus at Dunbar, Lothian, Scotland, June 2009.





Lesser Black-backed Gull Larus fuscus at Lower River Road Ponds, near Palo Verde, Maricopa County, Arizona, December 2006. This particular individual is a presumed first Arizona record (pending acceptance by the Arizona Bird Committee.







Xema

This is the only member of the genus.

Sabine's Gull Xema sabini at Twin Lakes, Willcox, Cochise County, Arizona, April 2006.







NON-PASSERINES