Order PASSERIFORMES. 
No. 35. 
Family ZOSTEROPIDjE. 
NESOZOSTEROPS TENUIROSTRIS. 
SLENDER-BILLED WHITE-EYE. 
(Plate 27.) 
Zosterops TENumosTRis Gould, Synops. Birds Austr. and Adj. Isl., pt. 1, pi. 18, Jan. 1st., 1837: 
Murrumbidgee River error=Norfolk Island. 
Zosterops tenuirostris Gould, Synops. Birds Austr. and Adj. Isl., pt. 1, pi. 18, Jan. 1st, 1837 ; id., 
Proc. Zool. Soc. (Loud.), 1836, p. 76, Jan. 16th, 1837 ; id., Birds Austr. Suppl., pt. iii., 
pi. 47, Sept. 1st, 1859 ; id., Handb. Birds Austr., Vol. II., p. 536, Dec. 1865 ; Sharpe, Cat. 
Birds Brit. Mus., Vol. IX., p. 154, 1884 (pref. Feb. 11th) ; Mathews, Handl. Birds Austral., 
p. 90, Jan. 1908 ; id., Nov. Zool., Vol. XVIII., p. 450, Jan. 1912. 
Nesozosterops tenuirostris Mathews, List Birds Austr., p. 324, Dec. 1913 ; Mathews and Iredale, 
Austral Av. Rec., Vol. IV., p. 110, Dec. 16th, 1920. 
Distribution. Norfolk Island. 
Advlt male. Top of the head, occiput, nape and hind-neck dark olive-green ; lores yellow ; 
feathers round the eye white, encircled with black ; sides of the face, ear-coverts and 
cheeks bright olive-green; scapulars, lower back and rump olive-brown ; rump, upper 
tail-coverts and wing-coverts olive-green ; primary-quills ash, narrowly margined on the 
outer weh with olive-green ; tail-feathers brownish-ash, narrowly margined on the outer 
webs with olive-green; chin and throat bright sulphur-yellow; sides of the neck and 
fore-neck olive-yellow ; chest, breast and abdomen pale primrose-yellow; sides of body, 
flanks and thighs dark grey, suffused with yellow; under tail-coverts primrose-yellow; 
under wing-coverts and axillaries white ; quills below grey, widely margined on the inner 
web with white. Bill dark horn, with lower base light horn, eyes bright brown, feet 
bluish-grey. Total length 137 mm. : culmen 12, wing 70, tail 53, tarsus 23. Figured. 
Collected near Kingston, Norfolk Island, on the 29th of April, 1913. 
Advlt female. Similar to the adult male. Total length 123 mm. : culmen 12, wing 67, tail 50, 
tarsus 23. Collected at the Cascades, Norfolk Island, on the 11th of June, 1913. 
Nest and eggs. The nests are built like those of Z. albogularis but smaller. From 2 to 4 eggs were 
found from the 25th of November to the 20th of December, 1912. The eggs are similar to 
those of Z. albogularis but smaller. They measure: 20'2 X 14'5, 20'4 X 15'4, 
20-5 X 15-5, 20 X 14-8; 20'5 X 14‘8, 203 X 14 6, 20‘5 X 155, 20T X 15T ; 20'5 X 15, 
20-6 X 15-5 ; 2T5 X 15, 20'5 X 15 ; 20 X 155, 20 X 15’6 ; 19'9 X 15 : 20 x 15 ; 
20-5 X 15-4, 20 X 15-2, 20 4 X 15*4 ; 199 X 15T, 20T X 152 ; 196 X 161, 20 X 16, 
20 X 15-8, 20 X 16-3 ; 20'5 X 135, 21 X 15, 195 X 15 mm. 
Breeding-season. November and December. 
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