BIRDS OF NEW ZEALAND NOT FIGURED BY BULLER. 
were in moult, others in full wing but not completed growing ; others with the 
tip of the feathers of the wing frayed. The number of perfect birds of scientific 
value was under hah a hundred. I found that birds thus compared gave 
satisfactory results, whereas when this series was used by others and every 
bird’s wing measured, the result was a big jumble of useless figures. 
In the July Emu for 1922 Stuart-Sutherland considered that there is only 
one from around New Zealand, the measurements of a typical pair being, for 
male and female : Wing 126 and 127 ; bill 16 and 14 ; tarsus 25 and 24. 
The birds from Stephen’s Island seem to be quite distinct in measurements 
from those from the rest of New' Zealand. The male has a wing measurement 
of 135 and the female 123 mm. 
The average measurements of four Tasmania skins being : Whig 120.7; 
tail 40.2 ; culmen 16.5 ; tarsus 25.9 ; middle toe and claw 31.5. 
Birds from Stew'art and Auckland Islands measure 123 in the wing and the 
Snares bird 118. 
We appear to have two forms in New' Zealand waters, the typical one, 
occurring only near the type locality, and the other belcheri, occurring over 
the rest of the islands and in Australia. 
Murphy’s measurements for New Zealand, including the large Stephen’s 
Island bird, give the wing from 112-133 mm. and the Chatham Island form 
from 109.5 to 116.5. 
Where do w r e draw' the line ? 
I have never measured a wing greater than 128 mm. except from Stephen’s 
Island, that is to say that the rest of New' Zealand and Australia have birds 
with a wing measurement varying from 112 to 128 mm. This practically includes 
the measurements for the birds from Chatham Island. 
Loomis says that the wing of an Auckland Island bird measures 112, and 
in a Dunedin bird 115. 
1. Stephen’s Island, wing 135, P. u. urinatrix. 
2. Rest of New Zealand and Australia, wing 112 to 128, P. u. belcheri, 
average 120. 
3. Chatham Island wing 109.5 to 116.5, P. u. chathamensis. 
Messrs. Murphy and Harper, in 1921, were not so sure of the distinctness 
of the form they named chathamensis (on four skins) as they now give the wing 
measurement as varying from 110.5 to 119.8. It seems to vary very little from 
belcheri. 
In Murphy and Harper’s work in 1921 we have some excellent chawing of the 
bills ; on p. 504 w 7 e find D. E. F. I. showing urinatrix , chathamensis, berard and 
exsul ; these all look like subspecies of the first. But G=dacunhce and H= 
coppingeri seem distinct. 
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