56 THE BIRDS OF AUSTRALIA 



The Antarctic Petrel. 



TTialasscBca antarctica. 



Antarctic seas. 



Upper surface dull brownish black, on sides of neck gradually merging 

 into white, under parts white; broad slaty-brown band along edge of 

 the wings; the primaries are white on their inner webs, except at the 

 tips; the secondaries and their coverts are white; tail-feathers white, with 

 broad terminal band of brownish black. Total length 19.5 inches, wing 

 from flexure 12, tail 5, tarsus 1.75. 



This bird is only a rare visitor to the Southern New 

 Zealand and Tasmanian Seas, its true home being the 

 Antarctic. 



The Silvery-Grey Petrel. 



Priocella glacialoides. 



Southern oceans, in Pacific reaches California. 



Upper surface pale grey, lighter on head and back of neck; dark 

 spot in front of the eye; forehead, cheeks and under surface white; 

 flanks and tail pale grey; bill yellow. Total length about 18 inches, wing 

 12.6, tail central 5.1, lateral 4.15, bill 2.1, tarsus 1.8. 



The Spectacled Petrel. 



Majaqueus cequinoctialis. 



Southern Ocean, north to South Latitude 30°. 



Sooty-black; chin white, which varies, some have irregular while 

 stripe under the eye almost to the nape and a transverse band across the 

 forehead; shafts of primaries white. 



Nest in a long burrow, generally on a hillside. The nest near 

 the end of a burrow is made of vegetation and mud mixed, about 

 four inches high and slightly hollowed. Other petrels usually 

 make no nest in their burrow. The single egg is white, and 

 measures about 3.40 x 2.10 inch; it has a stronger musky 

 perfume than most other Petrels' eggs. 



The Black Petrel. 



Majaqueus parkinsoni. 

 New Zealand seas. 



Very similar to the preceding species, but smaller and entire plumage 

 sooty-black. Total length about 18 inches, wing 13.2, tarsus 2.2. 



Nest the usual Petrel burrow. The single white eco- measures 

 2.80 X 1.96 inch. 



