[ti nest ii oonttruoted in the sain.- manner as some of the other Petrels, namely, in a hole which 

 ,1,, preparet r,„ the purpose in some bank or ledge. They Weed in considerable numbers on parts 

 of the mainland and on the islands off the south-western coast of Australia. The egg is white, one inch 

 and i half long by one inch and an eighth broad ; usually one egg only is laid at a time. 



The young are furnished with a liberal coating of down on the under parts, which supplies warmth 

 till the true feathers appear. 



Space ovei the eye, round the bill, and all the remaining under surfaces pure white; crown of the 

 l,, .„l, back of the neck, and a broad streak beneath and behind the eye slaty-grey, merging into a darker 

 ti n ™ on the back; wings and tail, brown: upper tail-coverts, faint grey; irides, reddish-brown; legs and 



feet, almost black: Webs, yellow. 



Habitats: ('ape Leeuwin and islands off the south-west coast of Australia. 



GKXUS 1 1 ALA D ROMA (Illiger). 



0\ i; other species of this form i^ known, besides the following representative, which is found in 

 Australia. 



II A LA I) ROM A (' R I X ATUIX. 



DIVING PETREL. Genus: Haladroma. 



rflHE power of diving, exceptional among this tribe, is indicated in the name given to this variety. It 

 * i- wanting in the Btrong and lasting powers of flight possessed by the allied genera, but is as agile 

 in diving a- they are on the wing. Its flight is peculiar; it keeps a straight line with a halting or 

 Buttering motion, widely different from other Petrels, whose flight is as uncertain in its changing curves 

 as th. waves over which they skim. The Diving Petrel is even frequently seen to go through the crest 

 of i wave rather than rise from its line of flight to overtop the obstruction; it is said by some that they 

 even By under water. 



Great flocks ol these birds are Been together; in Queen Charlotte's Sound and parts of New Zealand 

 tin y are very plentiful. They utter a peculiar note like that of a frog. 



Besides the powers of diving, this species has the further peculiarity of possessing a dilatable 

 pouch resembling that of the Pelican. In outward appearance it closely resembles the Little Auk of 

 northern latitude-, but Gould states that the likeness is merely analogous, they being representatives of 

 each other in different families. 



Head, upper surfaces, wings and tail, dark grey; under surfaces, white; irides, brown; upper 

 mandible brown, lower mandible blue-grey: pouch, light grey; legs and feet, light blue; webs, transparent 

 blue. 



Habitat : Southern Tasmanian coast. 



