THE BIRD BOOK 



59. FRANKLIN'S GULL. 



Larus franklini. 



Range. Interior North America, breeding from 

 middle United States northward. 



Like the last but smaller and with the primar- 

 ies light. Underparts rosy in breeding season. 

 Nests very abundantly in the marshes of Minne- 

 sota and northward. Nest made of grasses and 



Franklin's Gull 



Bonaparte's Gull 



Grayish brown 



placed in the marsh grass barely above the sur- 

 face of the water. Eggs same color as the last 

 but the markings more inclined to zigzag lines. 

 Size 2.10 x 1.40. Data. Heron Lake, Minn., May 

 26, 1885. Nest of wet sedge stalks and rubbish 

 placed in a bunch of standing sedge in shallow 

 water; at least five thousand birds in rookery. 

 Collector, J. W. Preston. 



60. BONAPARTE'S GULL. Larus Philadelphia. 



Range. Breeds in the northern parts of North America; winters from Maine 



and British Columbia to the southern border of the United States. 



Smaller than the last; 14 inches long. 

 Plumage similar, but bill slender and 

 black. They nest in great numbers on 

 the marshes of Manitoba and to the 

 northward. The nests, of sticks and 

 grass, are placed on the higher parts of 

 the marsh and the usual complement of 

 three eggs is laid during the latter part 

 of June. The eggs are grayish to green- 

 ish brown, marked with dark brown and 

 lilac. Size 1.90 x 1.30. 



Pale grayish brown 



48 



