Birds of the Philippine Islands. 561 



73. Tanygnathus luconensis (Linn.) ; Grant, Ibis, 1894, 

 p. 410, 1896, p. 475. 



We have received several examples of the Blue-crowned 

 Parrakeet, and on looking over the whole of the series from 

 the different islands now available for comparison, I have 

 noted the following particulars : — 



Adult birds from Luzon, Mindoro, and Marinduque have 

 more green on the forehead, and the blue of the crown 

 is less extended and is of a much paler verditer colour. 



Wings measure : — 



Male. Female, 

 in. in. 



Luzon 7'4-7-6 — 



Mindoro 7*2-7 -5 7-1 



Marinduque 7'5 — 



All the adult examples from Masbate, Panay, Guimaras, 

 and Negros have the green on the forehead narrower and 

 the blue of the crown more extended and of a deep cobalt- 

 colour. Wings measure : — 



Male. Female. 



in. in. 



Masbate 7*6 — 



Panay — 7-1 



Guimaras 7-6 7-1 



Negros 7-25-7-5 7-15 



Palawan birds are much like those from Luzon. Wing 

 in the male measures 7"3-7*5 inches. 



Adult birds from Cebu resemble those from Luzon in 



having more green on the forehead, but the blue on the 



crown is darker, as in the other central-island birds. Wings 



measure : — 



Male. Female, 



in. in. 



Cebu 7-45 705 



We have but few adult examples from Mindanao, Melanipa, 

 and Basilan, but these have the forehead and fore part of 

 the crown green, only the back of the crown and occiput 

 being pale bluish. Wings measure : — 



Male. Female, 



in. in. 



Basilan "•G-78 71 



2r ^ 



