74 BULLETIN 186, UNITED STATES NATIONAL MUSEUM 



ICTHYOPHAGA NANA NANA (Blyth) 



Malayan Lesser Fishing Eagle 



Icthyaetus nanus Blyth, Journ. Asiat. Soc. Bengal, vol. 11, 1842, p. 202 (Malay 

 Peninsula; type locality restricted to Singapore, apud Stuart Baker). 



Polioaetus humilis, Gyldenstolpe, Journ. Nat. Hist. Soc. Siam, 1915, p. 234 

 (listed) ; Ibis, 1920, p. 750 (Khun Tan). 



The only definite record for northern Thailand is based upon a 

 female specimen taken by Eisenhofer at Khun Tan and now deposited 

 in the museum at Stockholm. 



This is said to be a bird of forested waterways and not to occur 

 on marshes and ricefields as does the preceding species. Doubtless 

 it will be found to be not uncommon along our larger rivers. 



It is a much smaller bird than the last and differs in color chiefly 

 by having the central rectrices entirely brown and the lateral ones 

 mottled brown and white on the basal two-thirds (sometimes wholly 

 brown in very old specimens) . 



I have examined the skin in Stockholm and find that the flattened 

 wing measures 401 mm. (its arc, 392 mm.) ; so small a female clearly 

 belongs with the Malayan race. 



SARCOGYPS CALVUS (Scopoli) 



Indian King Vulture 



Vultur (calvus) Scopoli, Deliciae florae et faunae insubricae, pt. 2, 1786, p. S5 



(Pondicherry, ex Sonnerat). 

 Otogyps calvus, Gyldenstolpe, Kungl. Svenska Vet.-Akad. Handl., 1916, p. 132 



("Northern Siarn"). — de Schauensee, Proc. Acad. Nat. Sci. Philadelphia, 



1928, p. 576 (DenChai). 

 Sarcogyps calvus, Deignan, Journ. Siarn Soc. Nat. Hist. Suppl., 1931, p. 164 (Chiang 



Mai, Doi Suthep) ; 1936, p. 77 (Chiang Mai, Doi Suthep). — de Schauensee, 



Proc. Acad. Nat. Sci. Philadelphia, 1934, p. 269 (Khun Tan). 



The king vulture is common everywhere in our provinces ; it occurs 

 chiefly on the plains but may also be seen soaring above even the 

 highest peaks. It may be found feeding with Pseudogyps wherever 

 there is carrion, but always in comparatively small numbers. 



At Chiang Mai this species repaired to the trees on the lower slopes 

 of Doi Suthep to roost ; only occasionally were individuals observed to 

 pass the night in the trees of the town. 



In spite of the commonness of this bird, I have only once found evi- 

 dence of its breeding : On Doi Suthep at 1,800 feet, May 31, 1930, 1 took 

 a fully grown immature that was perched beside a large nest of sticks 

 about 60 feet from the ground in a dipterocarp. 



An adult female had the irides light yellow ; the bill dark brown, the 

 mandible lighter ; the cere rose-pink ; the bare skin of the head and neck 

 mottled pink and white, with black macules; the wattles pink; the 



