BIRDS OF NORTH AND MIDDLK AMERICA. 



8(i5 



Adult female.— Length (skins,) 84.5-96.5 (92); wing, 40-4.':;. 5 (41. S); 

 tail, 28.5-34 (32); exposed cuhnen, 13.5-15.5 (14.4); tarsus, 16.5-19 

 (17.9); middle toe, 8-9.5 (8.8).« 



Southern Mexico, in States of Vera Cruz (Tlalcotalpam; Santeco- 

 mapam), Tabasco (San Juan Bautista; Teapju), Yucatan (Mujeres 

 Island), and southward through Guatemala (Coban; Choetum; 

 Duefias; Escuintla; Naranjo; Retalhuleu; San Jose), British Hon- 

 duras (Belize; Orange Walk), Honduras (San Pedro; Ceiba; Yaruca), 

 Nicaragua (Greytown; Los Sabalos; Rio Escondido; Sucuya) and 

 Costa Rica (Turrialba ; Pacuare ; Volcan de Irazii ; ( ^artago ; San 

 Jose; Nicoya; Bebedero; Volcan de Aliravalles) to Panama (Santa 

 Fe de Veragua; David; Bogaba; Volcan de Chiricpii; Calovevora; 

 Calobre; Lion Hill; Paraiso Station; Panama). 



a Eighteen specimens. 



Average measurements of s])ecimens from different gc<)L;rai)liir areas, together with 

 those of the South American forms, are as follows: 



Lofiilitv. 



Seven adult males from Vera Cm/, n ml 'I'Mbasco 



Two adult males from Chiapas 



Ten adult males from southern Honduras (li, Nicaragua 



(1), and Costa Rica (8) 



Six adult males from Panama 



Two adult males. from Colombia 



Eight adult males from Venezuela 



One adult male from Peru (Chanchamayo) 



Two adult males from British Guiana 



One adult male from Lower Amazon (Santarenii 



Seven adult males from southwestern Brazil (Mattogrosso). . 



Three adult females from Vera Cruz and Tabasco 



Ton adult females from southern Honduras (2), Nicaragua 



(3) , and Costa Rica (5) 



Five adult females from Panama 



Five adult females from Venezuela 



Three adult females from southwestern Brazil (Mattogrosso). 



Wing. 



42.3 



42. 7 



42.7 

 43.3 



43. :, 

 44.7 

 4.5 



44.7 

 43.5 

 45. 9 



41.0 

 42.5 

 43. 2 

 44.3 



Tail. 



33.1 

 32.5 



32.7 I 

 34. 1 

 32.5 i 

 33.2 

 37 



34.7 i 

 30.5 

 37 



31.0 

 33 

 32.1 

 34. 2 



Middle 

 toe. 



8.7 

 8.5 



8..0 

 8.7 

 'J 

 8.6 



14 

 12. 5 

 14.3 



14.4 

 14.7 

 14.2 

 14.2 



18.5 



18 



19.5 



17.7 

 18 



18.4 

 18.8 



8.2 



8 



9.1 



8.5 



8.8 

 8.8 

 8.3 



After very careful examination and comparison of a series of 108 adults of this species 

 I am not able to confirm all the characters of this form, as given by Mr. Bangs, especially 

 the alleged difference in intensity of the yellow on the underparts, which to me seems, 

 if any different, brighter in South American than in Mexican and Central American 

 skins, instead of the reverse. The difference in coloration of the upper i)arts is also by 

 no means contsant, but there seems to be an average difference suilicient to sei^arate 

 the two series. The birds from southwestern Brazil (Mattogrosso) are, however, easily 

 separated by the charact(>rs given in tlie key on page 363. 



