but retires to Kerguelen’s Land and other places in September or October to breed. Each pair burrows horizontally into wet, peaty 
earth from two to eighteen feet. At the end of the hole they form a large chamber, and construct in the centre of it a nest 
similar, except in size, to that of the Albatross (D. Exulans), in the hollowed top of which the female lays one white egg. They seldom 
leave their burrows in the daytime, and when one happens to do so, it is at once hunted by a ‘Kelly’ ( Ossifraga Gigantea), although 
no such jealousy exists at sea. From this habit of flying only by night it is called 'Kiglit Hawk’ by the sealers. Mr. Harris’s party, 
when wrecked on Kerguelen’s Land, used to dig these birds out of their burrows and eat them ; and, in order to save useless digging, 
for their spades were only made from the staves of old casks, they w ould hold one to the mouth of a hole and make it cry out, when, 
if another was inside, it would answer. This is by far the best diver of all the sea-going Petrels. It seems even fond of it, and more- 
over remains under water for several minutes, when it comes up again, shaking the water oft’ its feathers like a dog. Sometimes I have 
seen it poise itself for a moment in the air at a height of about twenty or twenty-five feet above the sea, and shutting its wings, 
take a header into the water. It dives with its wings open, and uses them under water much in the same manner as when flying.” 
Upper parts cinereous, some of the feathers with light tips ; crown of the head a little darker than the rest. Primaries blackish on 
their outer w r ebs, grayish on their inner. Tail brownish black, under coverts blackish brown. All the rest of the plumage is pure white. 
Ridge of the upper mandible bluish black, as are also the lateral grooves of the lower mandible ; rest of bill yellow. 
Tarsi and feet yellowish green, the webs yellow, claws light brown, with black tips. 
The figure is of the natural size. 
