BIRDS OF THE BAHAMA ISLANDS. 209 



LARUS PHILADELPHIA. {Ord.) 

 Bonaparte's Gull. 



Winter Plumage, Male. — Above, pearly blue ; under parts, 

 white; a spot of black on the side of the base of the skull ; first four 

 primaries mostly white, tipped with black, which in turn is tipped 

 with white on the third and fourth ; nearly the whole of the outer 

 web of the first primary, black ; feet, yellow, tinged with red ; webs, 

 vermilion. Immature birds have a band of dark brown on the tail. 



Length 12.50, wing 9.75, tarsus 1.30, bill 1.15. 



I include this species on the authority of Mr. N. B. Moore, who 

 says that he closely observed a bird of this species at Long Island, 

 October S. I have never met with it, but there is no reason why it 

 should not occasionally visit the Bahamas, as it is common on the 

 Florida coast in winter. 



Fig. Aud. Bds. N. A., Vol. VII. pi. 442. 



STERNA ANGLIC A. Montagu. 

 Gull-billed Tern. 



Adult Male. — Bill, black, short and stout ; cap, black ; above, 

 pearl-gray; under parts, white; first two primaries tipped with 

 brown ; tail forked ; legs, black ; iris, brown. 



Length 13, wing 11.75, tail 5, tarsus i.io, bill 1.32. 

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