CINNAMON-CHESTED GROUND THRUSH — NORTH. 323 



reaching on to the sides of the nape, the chin and throat light 

 cinnamon-brown, the fore neck a slightly clearer brown; remain- 

 der of the under surface rich cinnamon-brown; down the centre 

 of the breast and the abdomen a broad irregular whitish streak 

 reaching to the vent; thighs pale brown with darker brown 

 centres to the feathers; under tail-coverts rich cinnamon-brown, 

 with a sub-apical blackish streak and a whitish tip or margin 

 which is confined chiefly to the inner web; the longest coverts 

 much darker than those just below the vent; bill (of skin) black; 

 legs and feet brownish black. Total length 9 - 25 inches, wing 

 3-6, tail 4-2, bill 0-6, tarsus 1-1. 



Locality. — Wiluna, Western Australia. 



Remark*. — The female of the Cinnamon-chested Ground Thrush 

 may be leadily distinguished from that of any other species of 

 Cinclosoma inhabiting Australia, by the almost uniform rich 

 cinnamon-brown colour of the upper and under parts. 



Mr. Gibson writes: — "Cinclosoma marginatum is found in 

 Western Australia, north of Lat. 30° S., south of this it is 

 replaced by C. castanotum. It is fairly common in the central 

 districts north of this, but not numerous, very shy, and is usually 

 found on stony ridges or stony flats. This species prefers 

 running to flying, unless flushed suddenly from under a bush in 

 the hot weather, and then it flies low and fast with a wavy 

 flight. It has a plaintive whistling call which it occasionally 

 utters when perched on a low limb usually of a dead tree ; this 

 note is very hard to locate when any distance off. 



"The nests are similar to those of other species of Cinclosoma, 

 and two eggs are laid for a sitting. They are placed on stony 

 ground in exposed positions, or under small bushes, one was under 

 a salt bush six inches high. I took them with eggs on the 13th 

 June, 30th August and 1st September, 1908. The photograph 

 of the nest and eggs of C. marginatum is that of the one taken 

 at Wiluna, Lake Way, on the 13th June, 1908, and the skin of 

 the female sent you I shot a day or two later, and may have 

 belonged to it." 



The nest is an open cup-shaped structure formed throughout 

 principally of thin strips of dead bark, with which is inter- 

 mingled a few dried grasses and plant stems. Outwardly it is 

 irregularly constructed, the inner cup measuring three inches 

 and a half in diameter by two inches and a quarter in depth. 



The eggs are two in number for a sitting, varying in shape 

 and size even in the same set. Of those taken at Wiluna on 



