BIRDS OF NORTH AND MIDDLE AMERICA. 



559 



Pyrrhulagra noctis ridgwayi Cory, Cat. W. I. Birds, 1S92, 15, 112, 150, part (type 

 from Antigua, Lesser Antilles; coll. C. B. Cory). 



PYRRHULAGRA NOCTIS CORYI Ridgway. 

 CORY'S BtTLLFINCH. 



Similar to P. n. ridginiyl but decidedly darker; adult male dull 

 black above and on anterior under portions of the Ijody, becoming- dull 

 slaty on abdomen and flanks; under tail-coverts usually wholly chest- 

 nut-rufous, sometimes intermixed with dusky slate; adult female and 

 immature male slightly darker than in P. n. rldgwayi. 



Adult inah,.— Length (skins), 121.92-14l\75 (181.06); Aving, 60.96- 

 68.83 (64.52); tail. 48.26-52.07 (50.80); exposed culmen, 12.T0-13.97 

 (13.21); depth of bill at base, 8.38-9.40 (8.89); tarsus, 18.54-19.81 

 (19.56); middle toe, 13.72-14.73 (14.22).^ 



Immature mah.— Length (skins), 118.87-119.89 (119.38); wing, 

 58.93-59.94(59,44); tail, 48.01-48.51 (48.26); exposed culmen, 12.45- 

 12.70; depth of bill at base, 8.64; tarsus, 19.05-19.30; middle toe. 

 13.21-13.72 (13.46).' 



Adult female. — Length (skins), 115.57-142.24 (122.43); wing, 56.90- 

 66.04 (60.71); tail. 46.74-51.05 (48.77); exposed culmen, 11.68-12.70 

 (12.19); depth of bill at base, 8.38-9.14 (8.64); tarsus, 17.53-19.56 

 (18.29); middle toe, 12.70-13.72 (13.46).-' 



^ Eight specimens. 



^Two specimens, both from St. Cliristopher. 



^Six specimens. 



Specimens from different islands average as follows: Those from Anguilla and Saba 

 are included for sake of comparison only, since no adult males from either of these 

 islands having Ijeen seen it can not now be determined whether they really belong 

 here or not. The only specimen seen from Barbuda is a young female, and as there 

 are no young females from St. Eustatius or other islands herein mentioned its relation- 

 ships can not be determined. 



