30 MR. E. C. STUART BAKER ON 



Wing 232. mm. This beautiful hawk is resident wherever 

 found, but moves about locally to a considerable degree. In the 

 non-breeding season it seems to be very gregarious, and small 

 parties may often be found flopping round together with their 

 curious crow-like flight. Occasionally these parties temporarily 

 join forces, and then a dozen or more birds may be seen together 



237. Baza jerdoxi. 



Lojjhastitr jerdoni, Blyth, J.A.S.B., xi, p. 464, (1842). 



9 Hup Bon, S. E. Siam ; 20.7.15. 



S Klong Song, near Petriu, C. Siam, 22.2.16. 



238. MlCROIIIERAX EUTOLMUS. 

 Hierax eutolmus, Giay, Gen. Birds 1, p. 21 (1844). 

 9 Krabin, C. Siam, 2.11.15. 



COLUMBM 

 239. Crocopus phcexicopterus axxamexsis. 



Crocopus annamensis, Ogilvie-Grant, Bull. B.O C, xxviii, p. 27 

 (1909). 



4 6 Krabin, C. Siam, 28.10.15 to 7.11.15. 



These specimens bear out Ogilvie-Grant's diagnosis of "anna- 

 mensis ". Vassal's skins were in a very bad condition, whereas 

 Herbert's specimens are very beautiful, and are therefore easier to 

 determine. They are decidedly darker birds throughout than viridi- 

 frons, with less green on the foreheads and much darker heads. In 

 the extreme west of Siam the birds are nearer true viridifrons, but 

 still sufficiently divisible from it. 



4-240. Trerox pompadora phayrei. 



Osmotreron phayrei, Blyth, J.A.S.B., xxxi, p. 344 (1862). 



cS Pak Jong, E. Siam, 19.8.15. 



Oberholser has recently shown (Smith. Misc. Coll. No. 7, 

 p. 2) that the name Osmotreron is antedated by Gloger's name of 

 Bendrophasa. I agree, however, with Hartert, who unites Treron 

 and Osmotreron under the former name, as there seems no good reason 

 for dividing them. The Siam specimen is quite typical. 

 —^ 241. Trerox olax. 



Columba olax, Teintn., PI. Col. 241, livr. 41 (1823). 



3 6 9 Klong Wang Hip, P. Siam, 3-4.10.15. 



JOURX. NAT. HIST. SOC. SIAM, 



