CLASSIFICATION BY ORDERS . 89 
12.5 in. Cook’s or White-winged Petrel (Cookilaria cookii). 
Hirratic flight and white underparts distinguish it from Rain 
Bird, which has grey underparts. 
13 in. Rainbird or Mottled Petrel (Pterodroma inexpec- 
tata). Conspicuous white throat against grey upper parts 
and white tail distinguish it from Cook’s Petrel. Like other 
petrels calls at night before rain, hence name. 
15 in. Long-winged or Great-winged or Grey-faced Petrel © 
(Oestrelata macroptera or Pterodroma macroptera). Solitary 
habits, greyish face, stout black bill. 
16.5 in. Cape Pigeon or Spotted Petrel (Daption or Petrella 
capensis). Conspicuous spotted plumage like chess board 
pattern on back, folded when sitting. 
18 in. Black Petrel (Procellaria parkinsoni). Unusually 
black plumage and bluish patches on bill. Call at night of 
harsh moaning note. Diurnal, haunting sea like Albatross. 
19 in. Brown Petrel (Adamastor or Priofinus cinereus). 
Brown plumage. Habit of plunging into sea from height. 
33 in. Giant Petrel or Nelly (Macronectes giganteus). 
Large size, heavy horn-coloured bill. 
ALBATROSSES 
28 in. Flat-billed or Grey-headed Mollymawk (Thalas- 
sarche chrysostoma). Totally dark grey head and colour of 
bill which is black, except for a yellow stripe along the top 
of the upper and the bottom of the lower mandible. 
29.5 in. Sooty Albatross (Phoebetria palpebrata). Dark 
colour, cuneated tail. 
30 in. Black-browed Albatross (Thalassarche melanophrys) . 
- Differs from Wandering and Royal Albatross by smaller size 
and black nose. 
30 in. Yellow-nosed Mollymawk (Thalassarche  chloro- 
rhynchus). Known by the conspicuous yellow ridge at the 
top of its bill. 
31 in. Snares Island or White-capped Mollymawk (Thalas- 
sarche bulleri). Upper and lower margins of bill yellow. A 
comparatively narrow black band in centre. ; 
36 in. Bounty or Grey-backed Mollymawk (Diomedella 
cauta). Head light smoky grey below line running through 
eye, white crown. | Aer 
AAD Wandering Albatross (Diomedea eaxulans). Large 
size, beautiful white head and neck, back and mantle. crossed 
with narrow lines of brown. 
44 in. Royal Albatross (Diomedea epomophora). Differs 
from Wandering Albatross by absence of transverse 
markings on back. . 
G 
