38 BULLETIN 17 2, UNITED STATES NATIONAL MUSEUM 



the Gliirbi region ; Herbert ^* says that his collector reported it breeding 

 at Bang Yang (Tachin). 



Dr. Abbott writes that in Trang it was commoner than Thaumatibis 

 gigantea. 



The species ranges from Pegu and Tenasserim to eastern Burma, 

 southwestern Yunnan, Cochinchina, southern Laos, Cambodia, Siam, 

 and Peninsular Siam. 



This species, while similar in general color to Thaumatibis gigantea, 

 is a much smaller bird and has a white patch on the inner lesser wing 

 coverts. Culmen in P. davisoni about 180 mm or less; in T. gigantea, 

 about 240 mm. 



THAUMATIBIS GIGANTEA (Oustalet) 



Ibis gigantea Oustalet, Bull. Soc. Philom. Pai-is, ser. 7, vol. 1, p. 25, 1877 

 (Cambodge). 



Dr. W. L. Abbott took an adult male at Lay Song Hong, Trang, De- 

 cember 5, 1896; and an adult on Pulo Terutau, April 6, 1904. 



Dr. Abbott thus describes the soft parts of the Trang specimen: 

 Iris red; feet dark red; bill greenish horny (jade color); naked head 

 dark brownish gray. Weight 7% pounds. 



He writes as follows of the Trang specimen: "It was a solitary 

 individual in a dry paddy field in the dry season and was quite unsus- 

 picious and allowed me to come as close as I desired to shoot it. The 

 Siamese all knew it, so it cannot be rare. On one occasion m the wet 

 season in a paddy field, there must have been dozens of ibises, both 

 P. davisoni and T. gigantea, but I did not secure any." 



Gairdner ^^ records it from the Ratburi and Petchaburi Districts, 

 and one was sent to the British Museum from the latter place for 

 identification; a specimen collected by him near Chom Beung, Rat- 

 bm-i, in March 1913, is recorded by Wiihamson,^^ who also later 

 records a pair taken on December 24, 1918, on the coast of Cambodia, 

 just south of the Siamese boundary; ^^ Robinson and Kloss ^* saw one 

 from the train just south of Koh Lak, and they record a male taken 

 at Krongmon, Trang, February 19, 1910.^^ 



The species has been recorded from Cambodia, southern Laos, 

 Cochinchina, and southwestern and Peninsular Siam. 



" Journ. Siam Soc. Nat. Hist. Suppl., vol. 6, p. 349, 1926. 

 " Journ. Nat. Hist. Soc. Siam, vol. 1, pp. 39, 152, 1914-15. 

 M Journ. Nat. Hist. Soe. Siam, vol. 2, p. 71, pi., 1916. 

 K Journ. Nat. Hist. Soc. Siam, vol. 4, p. 196, 1921. 

 «» Journ. Nat. Hist. Soc. Siam, vol. 5, p. 74, 1934. 

 «« Ibis, 1911, p. 17, pi. 1. 



