67 [Vol. xiv. 



feet were of a brick -red or clingy vermilion colour. Those 

 brown birds we obtained on the first day had the bill pearly 

 grey, with the base of the culmen pink, and the base of the 

 lower mandible orange, and the gular sac black. 



" Three that Dr. Lowe obtained on a subsequent occasion 

 differed somewhat. The youngest of the brown birds, with 

 the tail brown, had the plumage paler and more of a greyish 

 brown, and the feet were pale and of a yellowish orange, 

 with a slight tinge of brick-red along the outer toe, and a 

 little more yellow on the tarsus. The bill was opalescent, 

 pinkish mauve, with the tip of both mandibles horny brown. 

 There was no orange or pink patch on the base of the lower 

 mandible, but the entire bill was of the same colour, with 

 only a slight pinkish shade across the base of the culmen. 

 The sides of the face were entirely blue, a little deeper on 

 the lores, but with no green ; the gular sac was leaden 

 grey. 



"A brown bird with white tail had the most beautiful 

 bill of the whole series : it was of an opaline blue throughout, 

 tinged with lavender, and exhibiting the usual pink bar 

 across the base of the culmen ; the base of the lower man- 

 dible was fleshy pink ; the sides of the face dark Prussian- 

 blue, inclining to turquoisine-blue behind the eye, with the 

 edge of the eyelid cobalt. The gular sac was leaden black, 

 not so intense black as in the white birds ; the feet brick -red, 

 not so bright as in the older individuals. Iris dark brown. 



" A white bird obtained at the same time as the above had 

 the mandibular patch fleshy pink, like the bar across the 

 base of the culmen. Consequently the pink colour which 

 we noticed on the before-mentioned living bird may have 

 been perfectly natural after all, and not, as we supposed at 

 the time, the result of the shock from its tumble out of its 

 nest. Many of the brovm, white-tailed, individuals had 

 pink patches at the base of the lower mandible, and they 

 must be tolerably old, as we found them nesting, and thus 

 it may be that only the quite old birds have an orange 

 mandibular patch, but the latter is also seen in some 

 brown birds. 



