48 
PROCELLARIIFORMES 
Field Marks. An easily recognized, sharply contrasted black and white shearwater 
of fairly large size. 
Distribution . North Atlantic, chiefly the east side where it breeds. Was taken on 
or near New Brunswick waters many years ago. 
93. Black-vented Shearwater, le puffin de coues. Puffinus opisthomelas. L, 12. 
Of the west coast. Practically a smaller form of the Pink-footed Shearwater. Upper 
parts sooty grey to nearly black, lighter on head and neck, white below. 
Distinctions. To be confused only with Pink-footed Shearwater, but is a smaller bird 
and with greater contrast between upper and lower surfaces. 
Field Marks. Extensive white below. Smaller than the Pink-footed. 
Distribution. Pacific Ocean, breeding off coast of Lower California and Mexico. 
Has been taken off the south end of Vancouver Island, but is appar- 
ently only a straggler so far north. 
92. 1. Allied Shearwater, le puffin obscur. Puffmus assimUis. L, 11. A 
diminutive shearwater of the east coast, strikingly black and white. 
Distinctions. In contrasting black and white coloration plainly 7 distinguishable from 
any shearwater of the east coast except the Manx Shearwater of which it is a small edition, 
with a wing about 7 inches instead of 9 inches. 
Field Marks. An easily recognized, sharply contrasted black and white shearwater 
of small size. 
Distribution. North Atlantic Ocean, mainly east side along the coast of Europe. 
Has been known to occur on Sable Island, Nova Scotia. 
91. Pink-footed Shearwater, le puffin a pattes roses. Puffmus creatopus. 
L, 19. Of the west coast. Dark brownish grey to nearly black above, white below from 
vent to throat. 
Distinctions. Colour readily separates it from the dark-coloured shearwaters of the 
west coast. 
Field Marks. Extensive white colour below, larger than the Black-vented Shearwater. 
Distribution. The eastern Pacific, south to Chile, breeding on Juan Fernandez Island. 
This shearwater has been taken at Forrester Island, just north of the 
British Columbia boundary on the coast, and at sea off the southern end of 
Vancouver Island. It is probably of only casual occurrence in Canadian 
waters. It should be identified with considerable caution. 
89. Greater Shearwater, le grand puffin (le Puffin majeur). Puffinus gratis. 
L, 20. The larger of our two commoner eastern shearwaters, lighter below with under- 
tail-coverts ashy r grey 7 . 
Distinctions. Its light colour below should separate this from the Sooty Shearwater; 
and its general brownness of back instead of greyness and its variegated colour differenti- 
ate it from the fulmar. 
Field Marks. Flight habits as described previously, together with brown coloration 
and white underparts, should separate this in life from either the fulmar or the next species. 
Nesting. There is little if anything known of the nesting habits of this species. 
Probably breeds in the southern hemisphere on lonely islets that have not been ornitholo- 
gically 7 investigated. 
Distribution. Ranges over the whole Atlantic Ocean from the southern arctics to 
Cape Horn. Visits the east coast of Canada irregularly in summer. 
Economic Status. Of no economic importance. 
88. Mediterranean Shearwater, le puffin cendre. Puffinus diomedea. L, 20-5. 
A large, dark brown and white shearwater of the east coast, like the Greater. 
Distinctions. Of the east coast. Large, and light coloured, only likely 7 to be mistaken 
for the Greater, but the back contains more or less grey, and the colours, especially about 
the face and throat, are blended instead of being clearly defined. The undertail-coverts 
are white instead of dusky and the under surface is pure white without distinct traces of 
dark mottling. 
