One of the most curious cases is that of the parrots of the West-Indian Islands and Central America, several of which have white heads or foreheads, occurring in two distinct genera,[42] while none of the more numerous parrots of South America are so coloured. In the small island of Dominica we have a very large and richly-coloured parrot (Chrysotis augusta) corresponding to the large and richly-coloured butterfly (Papilio homerus) of Jamaica.
[42] Pionus albifrons and Chrysotis senilis (C. America), Chrysotis sallæi (Hayti).
The Andaman Islands are equally remarkable, at least six of the peculiar birds differing from their continental allies in being much lighter, and sometimes with a large quantity of pure white in the plumage,[43] exactly corresponding to what occurs among the butterflies.
[43] Kittacincla albiventris, Geocichla albigularis, Sturnia andamanensis, Hyloterpe grisola var., Ianthœnas palumboides, Osmotreron chloroptera.
In the Philippines this is not so marked a feature; yet we have here the only known white-breasted king-crow (Dicrurus mirabilis); the newly discovered Eurylæmus steerii, wholly white beneath; three species of Diceum, all white beneath; several species of Parus, largely white-spotted; while many of the pigeons have light ashy tints. The birds generally, however, have rich dark colours, similar to those which prevail among the butterflies.
In Celebes we have a swallow-shrike and a peculiar small crow allied to the jackdaw,[44] whiter than any of their allies in the surrounding islands; but otherwise the colours of the birds call for no special remark.
[44] Artamus monachus, Corvus advena.
In Timor and Flores we have white-headed pigeons,[45] and a long-tailed flycatcher almost entirely white.[46]
[45] Ptilopus cinctus, P. albocinctus.
[46] Tchitrea affinis, var.