Order ARDEIF0RME8 Family ARDEIDM. 
No. 244. 
BUTORIDES STRIATA MACRORHYNCHA. 
LARGE-BILLED MANGROVE-BITTERN. 
(Plate 195.) 
Ardetta MACRORHYNCHA Gould, Proc. Zool. Soc. (Lond.) 1848, p. 39 ; Gosford, New- 
South Wales. 
Ardetta macrcrrhyncha Gould, Proc. Zool. Soc. (Lond.) 1848, p. 39 ; id.. Birds Austr., 
Vol. VI., p. 66, 1848. 
Ardea macrorhyncha Gray, Genera Birds, Vol. III., App., p. 25, 1849. 
Butorides macrorhyncha Bonaparte, Comptes Rendus Sci. (Paris), Vol. XL., p. 722, 1855 ; 
Gould, Handb. Birds Austr., Vol. II., p. 316, 1865 ; Ramsay, Proc. Linn. Soc. 
N.S.W., Vol. VII., p. 56, 1882 ; id., Tab. List Austr. Birds, p. 21, 1888 ; North, 
Austr. Mus. Cat., no. 12, p. 322, 1890. 
Ardea striata subsp. macrofrhyncha Reichenow, Journ. fiir Ornith. 1877, p. 254. 
Butorides javanica macrorhyncha Mathews, Nov. Zool., Vol. XVIII., p. 233, 1912. 
Butorides striata macrorhyncha Mathews, List Birds Austr., p. 84, 1913. 
Distribution. New South Wales ; South Queensland. 
Adult male. Head and nuchal crest greenish-black ; sides of face, hind-neck, sides of 
neck, and breast dusky-grey ; back, wings, and tail very dark ohve-green ; 
wing-coverts edged with ochreous-buff ; bastard-wing and primary-coverts dark 
brown tipped with white like the inner primary- and secondary-quills, the 
innermost secondaries like the back ; tail uniform olive-green, paler on the 
outer feathers ; middle of throat and entire fore-neck streaked with white and 
dark brown and showing green reflections ; abdomen and sides of body grey, 
becoming dusky-brown on the lower flanks, vent, and under tail-coverts ; thighs 
reddish-brown ; axillaries and under wing-coverts pale grey, the outer marginal 
coverts white. “ Bill : upper mandible dark reddish-brown, basal portion of the 
lower one oil-green ; tibia and hinder part of the tarsus bright yellow, 
remainder of the legs and feet yellowish-brown ” (J. Gould). Total length 
485 mm. ; culmen 69, wing 186, tail 64, tarsus 48. 
Adult female. Similar to the adult male. 
Immature. Differs from the adult by the rufous shaft-lines to the feathers of the 
crown and sides of the head ; also by the bright ochreous centres to the 
feathers on the sides of the face and sides of the neck, as well as the pale 
wedge-shaped spots on the wing-coverts and scapulars, and the under-surface 
greyish-brown with broad white shaft-hnes. 
Nest. The usual loose structure of sticks. 
Eggs. Clutch, two to four ; uniform pale green ; axis 43 mm., diameter 32. 
Breeding-season. September to December. 
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