BIBDS OF NORTH AND MIDDLE AMERICA. 



589 



(9.40); depthof bill at base, 7.11-7.62(7.37); tarsus, 15.24-17.53 (16.00); 

 middle toe, 10.67-12.70 (11.94). ' 



Cuba, Porto Rico, St. Thomas, St. Johns, Virgin Gorda, Anegada, 

 and St. Croix, Greater Antilles; Anguilla, St. Bartholomew, Saba, 

 St. Eustatius, St. Christopher, Barbuda, Antigua, Guadeloupe, Desi- 

 rad^, Marie Galante, Dominica, Martinique, Santa Lucia, and St. 

 Vincent, Lesser Antilles; Tobago; Venezuela (including Margarita 

 Island); Colombia?. 



The series of sixty -two adult males and twenty-eight adult females, 

 repi'esenting the above-mentioned localities, while a large one in the 

 aggregate, is nevertheless far from satisfactory as a means of deter- 

 mining whether specimens from different islands really differ from one 



'Twenty-eight specimens. 



Specimens from the different islands average as follows: 



