LONG-WINGED SWIMMERS 



■'>-■ Vega Gull Lanis vegac. 



Range. — Coast of Alaska, south in winter to 

 California. 



Similar to the Herring Gull, but with the man- 

 tle darker, but not so dark as in tlie Western Gull. 

 The nesting habits and eggs are the same as 

 those of the Herring Gull, except that in a ser- 

 ies, the eggs of the Vega will average a little 

 darker in ground color. It nests during May on 

 the coasts and islands of Bering Sea, placing its 

 eggs in a hollow on the ground. Size 2.75 x 1.65. 



^^l^S-^J^,, 



iUed Gull 



California Gull 



Grayish brown 



)S. California Gull. Lams californi- 

 cus. 



Range. — Western North America, breeding in 

 the interior. 



A smaller Gull than the Herring with the prim- 

 aries grayish instead of black; length twenty- live inches. This Gull is found 

 in winter on the coast from British Columbia southward to Lower California, 

 but nests in the interiar from Utah northward. They nest very abundantly 

 around the Great Salt I^ake, placing tlieir nests generally upon the bare ground. 

 Sometimes there is a scant lining of grasses or weeds and" again the nests will 

 be situated in the midst of a tussock of grass. Three or four eggs generally 

 constitute a set, but occasionally five are laid. The usual nesting time is dur- 

 ing May. They show the same great variations in color and markings com- 

 mon to most of the Gulls. Size 2.60 x l.SO. 



.51. RiNCi-BiLLED Gull. Larus delaivarenis. 



Range. — Whole of North America, breeding from the United States north- 

 ward and wintering south to the Gulf States. 



A small Gull, eighteen inches in length, with a light gray mantle, black 

 primaries with white tips, and always to be distinguished" in the breeding sea- 

 son by the black band around the middle of the greenisli yellow bill. They 

 nest in enormous colonies on islands in the interior of the country and in 

 smaller colonies on the coasts. Thousands of them breed on the lakes of tlie 

 Dakotas and northward. The majority of them nest on the ground, although 

 on the coast they are often found on the cliffs. They commonly lay three eggs 

 placing them in a slight hollow in the ground, generally on the grassy portions 

 of the islands. The color varies from grayish to brownish, marked witli 

 brown and lilac. The height of the nesting season is in .June. Size of eggs, 

 2.80x1.75. 45 



