CUCULID*. 
Genus HIEROCOCCYX S, Miiller. 
Hierococcyx sparverioide* (Vig.). Large Hawk-Cuckoo. 
Hierococcyx sparverioides sparverioidea (Vig.). 
Cuculus sparverioides Vigors, Proc. Comm. Zook Soc. i, 1832, p. 
173 : Simla. 
Distr. — Malay Peninsula. 
Borneo. 
Sumatra. 
Java, 
Hierococcyx sparverioides bocki Ward!. Rams. 
Hierococcyx bocki Wardlaw Ramsay, Ibis, iSS6, p. 157 : Mt. Sago, 
West Sumatra. 
Disir, — Malay States. 
Sumatra. 
Borneo. 
Hierococcyx fugax (Horsf.). Malayan Hawk-Cuckoo. 
Hierococcyx fugax fugax (Horsf.),* 
Cuculus fugax Horsfield, Trans, Linn. Soc. xiii, 1821, p. 17S ; 
Java, 
Distr . — Malay Peninsula, 
Sumatra; Rhio Archipelago; Billiton. 
Borneo; Karimata Islands. 
Java. 
Hierococcyx fugax nisicolor (Blyth). 
Cuculus nisicolor Blyth, Journ. Asiat. Soc. Bengal xii, 1843, p. 943 : 
Nepal. 
Distr. — Malay Peninsula. 
Sumatra; Billiton; Siberut Island, West Sumatra. 1 * 3 
Java. 
Hierococcyx fugax hyperythru* (Goilld). 
Cuculus hyperythrus Gould, Proc, Zool, Soc. 1856, p. 96 : Shanghai, 
Distr. — Borneo. 
1 Although we have recently recognised fugax and nisicolor as distinct 
and have given characters for their recognition there remains an element of 
doubt in our minds as to whether or not they should be united as one 
immigrant race in which case H, vagaus could be regarded as a small southern 
resident form of the same species. Most of the fugax examined by us are 
females and most of the nisicolor males. 
3 A form of H. fugax also occurs in Banka. 
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