THE BIRDS OF THE NATUNA ISLANDS 



45 



Adult, sex unknown, U.S.N.M. No. 174686, Bunguran Island, 

 July 11, 1900. 



All these specimens show molt among the contour feathers, and 

 one. No. 174686, taken July 11, also among the wing quills. 



Doctor Abbott reported this bird common among the coco palms 

 on Bunguran Island. 



Measurements are given in Table 10. 



Table 10. — Measurements of specimens of CoUocalia linchi cyanoptila 



1 Measured in the flesh by the collector. ' Type. 



CHAETURA GIGANTEA GIGANTEA (Temminck) 



Cypselus giganteus Temminck, Nouveau recueil de planches colorizes d'oiseaux, 

 vol. 4, livr. 61, texte to pi. 364, p. [1], Aug. 27, 1825. ("Java"; "district 

 sauvage de Bantam.") 



Two specimens were obtained by Doctor Abbott: 



Adult female, U.S.N.M. No. 174682, Bunguran Island, July 11, 

 1900. Length in flesh, 222 mm. 



Adult female, U.S.N.M. No. 174683, Bunguran Island, Jidy 11, 

 1900. Length in flesh, 242 mm. 



These appear to be identical with specimens from the Philippine 

 Islands and the southern Malay Peninsula. Both are in process of 

 molt. 



♦CHAETURA LEUCOPYGIALIS (Blylh) 



Acanthylis leucopygialis Blyth, Journ. Asiatic Soc. Bengal, vol. 18, no. 206, 

 p. 809, Aug., 1849. ("Pinang.") 



This species Doctor Hartert has recorded ^^ from Bunguran Island. 

 Family TROGONIDAE 



•PYROTROGON DUVAUCELU (Temminck) 



Trogon duvaucelii Temminck, Nouveau recueil de planches colorizes d'oiseaux, 

 vol. 3, livr. 49, texte to pi. 291, p. [1], Aug. 28, 1824. ("Sumatra.") 



This species was reported by Doctor Hartert ^^ as collected on Bun- 

 guran Island. 



« Nov. Zool., vol. 2, no. 3, p. 472, Aug. 17, 1895. '» Nov. Zool., vol. 1, no. 2, p. 481, Apr. 16, 1894. 



