LORD HOWE ISLAND THICK-HEAD. 
Immature male. Fore-head whitish, head, neck and mantle grey, slightly washed with olive ; 
lower back and rump green washed with brighter olive ; upper tail-coverts greenish-olive ; 
lesser wing-coverts like the mantle ; median and greater wing-coverts margined with 
rufous ; primary-quills ash-brown, the outermost ones margined on the outer web with 
whitish-buff, the innermost ones with reddish-chestnut; secondaries margined on both webs 
with reddish-chestnut; tail-feathers brownish-olive, fringed on the outer webs with 
greenish-olive ; chin, throat and sides of the neck whitish, indistinctly freckled with brown ; 
chest, breast and sides of the body light yellowish-buff ; middle of the breast and abdomen 
pinkish-buff; under tail-coverts sulphur-yellow; under wing-coverts and axillaries 
white. Bill black, eyes reddish-brown, feet dark bluish-grey. Collected at Cat Park, 
Lord Howe Island, on the 6th October, 1913. 
Immature female. Entire upper-surface light brown, washed with olive, and with a few scattered 
patches of rusty-chestnut feathers on the sides of the neck, back of the neck, mantle, 
rump and wing-coverts ; upper tail-coverts entirely of this colour ; primary-quills ash- 
brown, margined on the outer web of the first four with whitish-buff and the remainder 
with reddish-chestnut; secondaries ash-brown, outer webs reddish-chestnut, innermost 
secondaries uniform reddish-chestnut; tail-feathers brownish-olive, fringed on the outer 
webs with greenish-olive ; chin and throat whitish ; chest, breast and sides of the body 
whitish-buff; middle of the belly and abdomen pinkish-buff with a few scattered light 
chestnut feathers ; under tail-coverts light yellow ; under wing-coverts and axillaries 
white ; under aspect of quills ash-coloured with the margins of the inner v'ebs reddish-buff. 
Bill blackish-grey, eyes light brown, feet light blue-grey. Collected at the Pines, Lord 
Howe Island, on the 13th of January, 1914. 
Nest and eggs. Two nests from Lord Howe Island are built like those of P. xanthoproctatrom. Norfolk 
Island. The tw T o clutches of 2 eggs each are like the white varieties of P. xanthoprocta but 
measure only 25'1 X 18, 23'8 X 18’1 ; 25’5 X 18,23 X 17'8mm. They were found on the 
28th of September and the 11th of October, 1914. 
Breeding-season. September and October. 
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