CAMPBELL ISLAND SHAG. 
dark brown, gular pouch crimson, bill brownish-black, gape orange-yellow; 
feet flesh colour, webs brownish. Length 630 mm. : wing 268, culmen 54, 
tail 118, tarsus 62. Other measurements 256 female to 280 (male), and 287. 
The im m ature has a narrow band of white on the chin ; a brown band on the 
neck surrounding this ; the upper-surface brown with metallic-green reflections 
in the feathers of the back ; rump and thighs greenish-black ; space immediately 
round the eye bare; lores and the space below' the eye space feathered with 
browm. 
As the bird gets older, the eye space gets more bare, the upper-surface gets 
more bluish-green, especially the head and rump ; the browm feathers of the neck¬ 
band get darker and the white chin stripe divides the dark neck-band and joins 
the white of the under-surface, but there always seems to be some dark feathers 
on the w r hite connecting band. 
In adult skins of this form, the dark neck-band (which in the immature 
is always united) is always narrower than the same part of campbelli. In some 
skins this band is divided by a white stripe about 12 mm. wide, with a few 
dark feathers. Sometimes the white dividing stripe is very narrow ; sometimes 
it is only indicated by white feathers ; and again it may only extend half-way 
through the dark band ; sometimes, in skins from Enderby Island, there seems 
to be no white line even indicated, in this case the bird differs from campbelli 
in this band being narrower ; it also differs in colour on the upper surface. 
The immature of colensoi differs from the immature of campbelli in having 
a narrower dark neck-band surrounding the white chin. In the immature of 
each there is no wing-bar. 
The birds from Enderby Island differ from those from Auckland Island in 
being smaller. Auckland Island birds measure wing 270-285; bill 50-52. 
Enderby Island birds measure wing 260-270 ; bill 48-50. 
Nest. In colonies on sea cliffs ; composed of sea-weed, the outside being 
heavily incrusted with guano. 
Eggs. Clutch tw'o to three; ovoid, milky bluish-white, covered with a 
coating of lime, 57 to 60 mm. by 36.5 to 39. 
Breeding-season. November to December or February (Enderby Island). 
During the breeding-season, half-grown young and eggs are frequently found 
together. 
The type of colensoi is not quite adult and has the white-feathered part 
from the inter-ramal space to the breast quite wide (as in No. 3) more as in 
ranfurlyi, but not quite as wide. It has the white wing-bar, but no dorsal 
patch. Wing 275 mm., exposed culmen 50, tarsus 60. 
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