Order LARIF0RME8 
No. 148. 
Family LARIDM. 
BRUCHIGAVIA NOV.E-HOLLANDI^ GOULDI. 
NORTHEEN SILVER GULL. 
Gelastbs GOULDI Bonaparte, Naumannia 1854, p. 216; northern coasts of Australia. 
Gelastes gouldi Bonaparte, Naumannia 1854, p. 216. 
Gavia gouldi Bruch, Journ. fiir Ornith., 1855, p. 285. 
Bruchigavia gouldi id., Consp. Gen. Av., Vol. II., p. 228, 1857 ; Gould, Handb. Birds 
Austr., Vol. II., p. 388, 1865. 
Larus scopulinus major Schlegel, Mus. Pays-Bas, Vol. VI., Larus, p. 29, 1863 (pars). 
Larus jamesonii Finsch, Neu-Guinea, p. 184, 1865. 
Larus gouldi Gray, Handl. Gen. Sp. Birds Brit. Mus., pt. iii., p. 116, 1871. 
Larus {Xema) gouldii Ramsay, Proc. Linn. Soc. N.S.W., Vol. II., p. 201, 1877 ; id., Tab. 
List Austr. Birds, p. 22, 1888. 
Larus novce-hoUandice Saunders, Proc. Zool. Soc. (Lond.) 1877, p. 799 ; Hartert, Nov. 
Zool., Vol. XII., p. 200, 1905 ; Berney, Emu, Vol. VI., p. 114, 1907 ; Ingram, Ibis 
1908, p. 462 ; Campbell and White, Emu, Vol. X., p. 201, 1910. 
Bruchigavia jamesonii var. gouldi Mathew, Proc. Linn. Soc. N.S.W., Vol. X., p. 256, 1885. 
Larus novce-hollandim gouldi Mathews, Nov. Zool., Vol. XVIII., p. 211, 1912. 
Distribution. Northern coasts of Australia, and east coast as far south as the Capricorn 
group. 
Adult male. Differs from B. n. novm-hollandice in its larger size and in the smaller amount 
of white on the first two primaries, and no mirror on third save a very small one on 
southern birds ; “ Iris white. Eyelid red. Bill dark red, Legs and feet red.” 
This is the coloration of the soft parts of fully adult old birds ; full plumaged 
birds are also recorded with “ Iris light grey. Eyelid orange. Bill blood-red dark tip. 
Legs and feet orange red” ; wing 314 mm., culmen 39, tarsus 54. 
Adult female. Agreeing, but somewhat smaller throughout. 
Immature. Fully plumaged, but with the bill in the skin dark tipped with red base, and 
small mirrors on first and second primaries ; no mirror on third, and the basal white 
on third confined to the outer web, no white on the inner web. 
Previous to attaining the adult plumage the primaries have no mirrors but are all 
black with very restricted white at the base. The tail-feathers are tipped with a 
broad brown bar, and the back-feathers retain the brown tips of the nesthng- 
plumage on feathers of the back, scapulars, and upper wing-coverts ; “ Iris dark, 
bill dark horn-colour, legs and feet grey with black colours.” Another, “ Eyes 
black.” 
Immature with traces of down. Channel Rock, Torres Strait, June 1st, 1881 : “ Iris brown, 
bill horn. Legs and feet fight brown ” ; top of the head uniform fight brown, bases 
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