Mr. J. H. Gurney on Gypoictinia melanosternon. 457 
Gave® ( continued ). 
Lams canus . 18+2 
-eburneus . 17+3 
Lestris parasitica # (19+3 ?). 18+2 
Procellaria glacialis. „ 
-pelagica. 11 + 2 
--gigantea . .... 
Diomedea exulans (40 Nitzsch) .. 36+2 
Steganopodes. 
Pelecanus . .... 
Tachypetes. .... 
Dysporus sula . .... 
Plotus. .... 
Graculus carbo. 18+3 
-cristatus . 13+2 
( 20 ) 
(13) 
(30) 
(38) 
(29) 
(24) 
(28) 
(16) 
( 21 ) 
(15) 
Pygopodes. 
Podiceps crist. et rubric. (16+1 ?) 17+3 
Colymbus arcticus . 20+3 
-septentrionalis. 19+3 
Alca alle ; A. pica, Linn .. 13+3 
Mormon arcticus . 13+2 
Uriagrylle. (11+8; 12+6) 14+3 
-troile. 14 
Alca torda. 17+3 
( 20 ) 
(23) 
( 22 ) 
(16) 
(15) 
(17,19) 
( 20 ) 
XL .—Note on the Nestling Plumage of Gypoictinia melano¬ 
sternon [Gould). By John Henry Gurney. 
In f The Ibis/ 1884, at p. 465, will be found some particulars 
respecting that very rare Raptorial bird Gypoictinia melano¬ 
sternon , which were communicated to me by Mr. K. H. 
Bennett. 
The Norwich Museum has recently received from this 
gentleman a fledged nestling of this species, taken from the 
nest near Mossgiel, in New South Wales, on the 6th of 
December, and supposed by Mr. Bennett to be “ between two 
and three months old.” 
The following is a description of this specimen, which I 
am desirous of recording, as, so far as I am aware, no account 
has previously been given of the first plumage of this species. 
