BIRDS OF NORTH AND MIDDLE AMERICA. 



527 



Adult female. —Length (skins), 125-136 (130); wing, 65-72.5 (68.9); 

 tail, 55-61 (58.2); exposed culmen, 12.5-14.5 (13.2); tarsus, 13-14 

 (13.4); middle toe, 7-8 (7.7).« 



Southeastern Mexico, in States of Vera Cruz (Cordova; Santeco- 

 mapam),Oaxaca (Santo Domingo), Tabasco (Teapa),Campeche (Cam- 

 peche), Yucatan (Merida; Chichen-Itza; Cozumel Island) and Chiapas 

 (Palenque; Ocuilapa; Huehuetan), and southward through Guatemala 

 (Choctum; Cajabon; Chisec; Retalhuleu; Gualan; Escuintla), British 

 Honduras (Orange Walk), Honduras (Segovia River), Nicaragua (Los 

 Sabalos; Rio Escondido; Rio San Juan; San Carlos), and Costa Rica 

 (San Jose ; Rio Frio ; Bebedero ; Cariblanco de Sarapique) to Panama 

 (Loma del Leon; Panama; Paraiso; Calovevora; Bugaba). Appar- 

 ently ^ also the greater part of tropical South America, from Colom- 

 bia (Santa Marta; Minca; Bonda; Cacagualito; Bogota), Venezuela 

 (Caracas; Carupano; SanEsteban; San Antonio; Guanaguana; Alta- 

 gracia) and Trinidad to Peru (Chota; Junin), Argentina (Salta), Para- 

 guay, Brazil (Mexiana Island, lower Amazon), and Guiana. 



a Thirteen specimens. 



Specimens from Colombia, Venezuela, and Trinidad seem to be considerably grayer 

 above than those from Central America, and I doubt whether the South American 

 birds should be considered the same sul^specifically; but a very much larger series of 

 specimens than that which I have been able to examine will be, necessary to determine 

 the question of whether the South American and Central American birds are really 

 different as well as whether there is more than one form in Central America. 



&As stated above (in footnote) there is doubt as to \ho identity of South American 

 with Central American birds. 



