^1 



THE BIRDS OF SOUTH-WEST AND PENINSULAR 81AM. 143 



APID/C. 

 Swifts. 



(Shafts of tail feathers btifl, ending in bare points . . . . . . 4 



(Shafts of tail feathers normal . . . . . . . . 2 



1 Tail very deeply forked ; crested or with ornamental plumes on the head ; 



„ ' sexes somewhat different . . . . . . . . . . 6 



I Tail even, or at any rate not deeply forked ; not crested or with ornamental 



' plumes on the head ; sexes similar . . . . . . . . 3 



[All four toes directed forwards .. .. .. .. ..6 



K 1 Two toes directed forwards, two backwards Tnchornis h. infuvuitus 



(Three toes directed forwards, one backwards . . . . . . 7 



, I Wing over 7 inches .. .. .. CJiaetura gigantea indica 



( Wing under 5 inches . . C. leucopygiaUs 



. ( Eyebrow and moustachial plumes white . . Hemiprocnc c. comain 



' I Eyebrow and moustachial plumes not white //. lo^igipennis harterti 



a f Abdomen with white tips to feathers .. Apu^ p. pacificus 



( Abdomen uniform blackish .. .. A. affinis subfurcaius 



(Upper surface steel blue ; belly with white 



7 ■ edgings to feathers .. .. CoUocalia linchi elachyplera 



{ I'pper surface sooty brown ; belly without white edgings to feathers . . ^ 



_ -j Wing 5 inches or more . . . . C. innombmta 



' I Wing less than 5 inches . . . . C. fiancica germaini 



Collocalia linchi elachyptera Oberli. 



CoUocalia Ihichi elachyptera, Oberholser, Pioc. Acad. Nat. Sci. 



Philad. )906, p 207 (Beutinck Id., Mergui Archipelago). 

 CoUocalia linchi, Blyth, Birds of Burma, p. 35 (Mergui Arch.). 



Certain to occur in the neighbourhood of the Pakchan 



E.stuary within Siamese territory, though no specimens are actually 



on record. 



Collocalia innominata Hume. 



Collocolia innominata, Hume, Stray Feathers, i, 1873, p. 294 (South 

 Andaman Id.) ; A, p. 49 (Mergui and Bankasoon) ; J., p. 154. 



Collocalia maxir)ia (nomen nudum), Hume, Stray Feathers, iv, 

 1876, p. 223 (Mergui and Bankasoon\ 



Tliis large Cave-Swiftlet will probably be found abundant on 



manv of the islands on both coasts of Peninsular Siam. 



I. Gyldenstolpe, Kungl. 8v. Vet. Akad. Handl. M. Baker, Journ. N. H. Soc. Siam. iii. 1919. 



56. No. -2, 1916. <flrst Part*. 



J. Robinson. Journ. F. M. 8. Mus. vii. 1917. Baker, Journ. N. H. Soc. Siam. iii. 1919. 



K. Kloss, Ibis, 1918. (second part). 



I" Robinson and Kloss, Journ. N. H. Soc. Siam, M. I. Baker, Journ, N. H. Soc. Siam, iv, 1920. 



iii, 1919. (third part'. 



VOL. V, NO. 2, 1022. 



