DIOMEDEA BULLERI. 



Adult male. Above sooty-grey, with greyish margins to the feathers ; scapulars 

 and wings slightly darker than the back ; secondary quills somewhat greyer, with the 

 basal half of the inner web white, the innermost secondaries entirely brown like the 

 scapulars ; lower back, rump and upper tail-coverts pure white : tail-feathers slaty-grey, 

 blackish on the outer web, shafts white ; forehead and fore-part of crown white, 

 shading off gradually into grey, this colour occupying the hind-neck and sides of neck 

 and overspreading the mantle ; sides of face and entire throat and fore-neck French 

 grey ; the lores and ear-coverts darker, with a shade of black on the upper-part of the 

 lores and eyelid, extending above the ear-coverts ; rest of the under-surface from the fore- 

 neck downwards pure white ; axillaries and under wing-coverts pure white, with a very 

 broad band of blackish brown round the edge of the wing. Length, wing, 19 "2 

 inches ; tarsus, 3 ; middle toe and claw, 4.8 ; culmen, 4.9. 



Culminicorn orange-yellow to tip of unguis, lower mandible of same colour, 

 latericorn with tomia and unguis dark horn colour ; legs and feet red. 



Hutton states that young birds have the plumage of the entire head and neck 

 brown. 



The description and figure are taken from the type in the Tring Museum. 



345 



