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milate not only in their migratory movements, but also most closely 
in their whole habits, actions and economy. 
Cottocatra Ariey. Coll. vertice ferrugineo-rubro, dorso, plumis 
scapularibus, et alarum tectricibus saturate metallico-ceruleis, 
uropygio fulvescenti-albo, tectricibus caude fuscis; corpore subtis 
albo, ferrugineo tincto. 
Crown of the head rust-red; back, scapularies and wing-coverts 
deep steel-blue ; wings and tail dark brown; rump buffy white ; up- 
per tail-coverts brown; under surface white, tinged with rust-red, 
particularly on the sides of the neck and flanks; the feathers of the 
throat with a fine line of dark brown down the centre; irides black- 
ish brown; bill blackish grey ; legs and feet olive-grey. 
Total length, 4 inches; bill, 3; wing, 33; tail, 13; tarsi, Z. 
Hab. The southern portions of Australia. 
Dicrurvs Bracteatus. Dic. corpore supra et infra saturate nigro ; 
plumis capitis lunuld metallico-viridi, illis corporis presertim pec- 
toris guttd ejusdem splendoris, ad apicem bracteatis. 
Head, body above and below deep black ; the feathers of the head 
with a crescent, and the feathers of the body, particularly of the 
breast, with a spot of deep metallic green at the tip; wings and tail 
deep glossy green; under wing-coverts black, tipped with white; 
jrides brownish red; bill and feet blackish brown. 
Total length, 104 inches; bill, 13 ; wing, 6 ; tail, 54; tarsi, 2. 
Hab. The eastern and northern coasts of Australia. 
Syn. Dicrurus balicassius, Vig. & Horsf., but not of Lath. 
Rurpipura pryas, Gould. Rhipi. fronte, dorso inferiore, tectrici- 
busque caude ferrugineis ; caudd Suscescenti-cinered, rectricibus 
duabus intermediis ad apicem obscure albo notatis, reliquis per 
partem apicalem tertiam albis. 
Forehead rust-red ; crown of the head, back of the neck, upper 
part of the back and the wings olive-brown ; lower part of the back 
and upper tail-coverts rust-red ; tail brownish grey, the two centre 
feathers obscurely tipped with white, and the remainder white for 
one-third of their length from the tip; throat white; ear-coverts 
dark brown; chest black, the feathers being edged with white as 
they pass on to the abdomen, which is wholly white; flanks and un- 
der tail-coverts very faintly tinged with buff; irides blackish brown ; 
bill black ; feet dark brown. 
Total length, 5% inches ; bill, 3; wing, 28 ; tail, 3%; tarsi, 3. 
This species is: nearly allied to Rhipidura rufifrons, but differs in 
being much smaller, in the red not extending on to the plumes and 
shafts of the tail-feathers, and in there being more white on their 
extremities. 
Hab. Port Essington, north coast of Australia. 
Micrawca FuAvicAster. Mic. corpore superiore fuscescenti- 
olivaceo ; alis cauddque fuscis, colore pallidiore plumis marginatis ; 
guld albd, corpore inferiore flavo. 
All the upper surface brownish olive; wings and tail brown, mar- 
