20 Campbell, Dic/iolomous Key. 



240. Wing not less than 10.25 inches ; tail not less than 8.5 inches. 



(Under parts in youth buffy-white, each feather crossed by 



two bands of dark brown) . . . . . . . . 241 



Wing not more than g.25 inches ; tail not more than 7.5 inches. 



Accipiter cirrhocephalus (Sparrow-Hawk). 



241. Breast rufous brown, with white cross marks. 



Asttir approximans (Goshawk). 

 Breast rust-red, with pale rufous cross marks, back greyer. 



Astiir cruentus (Lesser Goshawk). 



242. Two toes turned to the rear . . . . . . . . . . 243 



One toe only at the rear . . . . . . . . . . 320 



243. Bill elongate ; lower mandible straight. Cuckoos. 244 

 Bill short and very stout, strongly hooked or curved . . . . 256 



244. Wings short and curved to fit body ; total length 24 inches ; all 



the body except wings black (but in youth reddish-brown). 



Centropus phasianus (Coucal). 

 Wings long and flat, not fitting body . . . . . . 245 



245. Total length more than 8.5 inches . . . . . . . . 246 



Total length less than 7.5 inches . . . . . . . . 252 



246. Length about 16 or 25 inches . . . . . . . . 247 



Length 8.5 to 13 inches . . . . . . . . . . 248 



247. Length about 25 inches. Scythrops novce-hollandicB (Channelbill). 

 Length 15 to 17 inches ; male metallic black, female and 3'Oung 



mottled brown. Eudynamis cyanocephala (Koel). 



248. Wings not reaching beyond tail coverts. Cuculus. 249 

 Wings reaching much beyond tail coverts. (Plumage brown and 



breast mottled in youth.) Cacomantis. 250 



249. Breast whitish, barred with black ; length 12.8 inches. 



C. intermedins (Oriental Cuckoo). 

 Breast uniform grey (mottled brown in youth) ; length 12 inches. 



C. pallidtis (Pallid Cuckoo). 



250. Tail feathers scalloped with white on both webs . . . . 251 

 Tail feathers toothed with white on inner web only. 



C. variolosiis (Square-tailed Cuckoo). 



251. W^ing 5.4 inches. C. fabelliformis (Fan-tailed Cuckoo). 

 Wjng 4.3 inches ; plumage much darker. 



C. castaneiventris (Chestnut-breasted Cuckoo). 



252. Breast grey or barred ; back and wings metallic green. 



Chalcococcyx. 253 

 Breast rufous-buff ; back ashy-brown. 



Misocalius palliolatus (Black-eared Cuckoo). 



253. Much rufous colour on tail feathers . . . . . . . . 254 



Little or no rufous on tail feathers . . . . . . . . 255 



254. Crown dark brown ; centre of abdomen not barred. 



C. basalts (Narrow-billed Bronze-Cuckoo). 

 Crown shining green ; under surface heavily barred. 



C. pcecihirus (Rufous-throated Bronze-Cuckoo). 



255. Crow^n and back of neck shining violet. 



C. plagosiis (Bronze-Cuckoo). 

 Crown and back of neck shining green. 



C. Incidns (Broad-billed Bronze-Cuckoo). 



