June, 1902. CHECK-IvIST OF CALIFORNIA BIRDS 13 



31 (57) Larus heermanni Cassin. 



Heermann Gull. 



SvN. — Blasipus heermanni; Blasipus belcheri. 



Status — Coiumon but irregular resident along our whole coast, straggling up the Sacra- 

 mento River; although occurring in greater or less numbers throughout the year, no 

 breeding colony has been discovered north of Lower California. 



32 (60) Larus Philadelphia (Ord) Gray. 



Bonaparte Gull. 



Syn. — Chroicocephalus Philadelphia. 



Status — Common migrant coastwise; sparingly through the winter on the larger lakes 

 inland as well as along the coast. 



33 (62) Xema sabinei (Sabine) Leach. 



Sabine Gull. 



Syn. — Larus sabini. 



Status — Rare spring and fall migrant ; recorded only from San Francisco Ba)^ Monterey 

 Bay and Mono Lake. 



34 (64) Sterna caspia Pallas. 



Caspian Tern. 



Syn. — Sterna tschegrava; Hydroprogne caspia. 



Status — Rare winter visitant coastwise; recorded definitel)- only from vStockton, San 

 Francisco and San Diego. 



35 (65) Sterna maxima Boddaert. 



Royal Tern. 



Syn. — Sterna regia; Sterna cayanensis; Thalasseus regius. 



Status — Common coastwise at all seasons; not recorded north of San Francisco Bay; 

 said to have been found breeding on San Miguel Island. 



36 (66) Sterna elegans Gambel. 



Elegant Tern. 



Syn. — Thalasseus elegans; Sterna galericulata. 



Status — Fairly common fall and winter visitant coastwise north to San Francisco Bay. 



37 (69) Sterna forsteri Nuttall. 



FoRSTER Tern. 



Status — Common breeding species on the lakes in the interior (Lake Tahoe, Eagle and 

 Elsinore Lakes); common migrant coastwise, and a few pass the winter in the south- 

 ern coast district. 



38 (71) Sterna paradisaea Brunnich. 



Arctic Tern. 



Syn. — Sterna pikei ; Sterna macrura. 



Status — Rare migrant coastwise; definitely recorded only from Monterey Bay. 



