Gulls. 



5 1. Herring Gull [Larus argentatus). L. 24. Ads., 

 summer. White spaces at end of outer primaries 

 sometimes joined. Ads., winter. Similar, but head 

 and neck, streaked with grayish. Yng. Above ashy 

 brown, margined and marked with buffy; wings brown- 

 ish black; tail the same; sometimes margined with 

 buffy; below ashy brown, sometimes lightly barred or 

 streaked with dusky. Notes. Cack-cack-cack; hah, hah, 

 hah, and other notes. 



Range. — Northern hemisphere; breeds in America from Maine, 

 Great Lakes, Minnesota, and British Columbia northward; winters 

 south to Cuba and Lower California. 



52. Vega Gull (Larus vegce). Similar to No. 51, but 

 back said to be darker; feet yellow. 



Range. — "Bering Sea and adjacent waters; south in winter to Cal- 

 ifornia and Japan." (A. O. U.) 



53. California Gull {Larus calif or nicus). L. 20. 

 Ads. Similar to No. 54 but larger; a red spot near tip 

 of lower mandible; white spot on outer primary, larger 

 and nearer end. Yng. Similar to No. 54 but darker; 

 tail nearly uniform fuscous. 



Range.— Western North America; breeds chiefly In interior, from 

 Utah to Lat. 68 ° , 30'; winters from British Columbia to Mexico. 



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