THE 



JOURNAL 



OF THE 



Natural History Society of Siam. 



Volume V. 



Bangkok. 



Number 2. 



the birds of south-west and peninsular siam. 

 By Herbert C. Eobinson, c.m.z.s., m.b.o.u., 



AND 



Cecil Boden Kloss, f.z.s., m.b.o.u. 

 (Continued from page 87). 



ACCIPITRIFORMES. 



OsPKEYS, Hawks, Eagles, Kites and Vultukes. 



(No aftershaft to feathers 

 (Witli an aftershaft to feathers 



Crown of head feathered 

 Crown of head naked 



[With a double notch to the upper mandible 

 ; - With a single notch to the upper mandible 

 (With no notch to the upper mandible 



I Upper parts black ; size smaller . . 

 I Upper parts not black ; size larger 



I Size vei-y small ; wing under 5 inches 

 I Size larger ; wing over 6 inches . . 



J Upper parts reddish brown 



1 Upper parts greyish or blackish 



f Lower parts orange-brown ; smal lor 

 (Lower parts pinkish white ; larger 



, f Lores bristly * . . 

 ' \ Lores feathered 



(Bill thin, much compressed 

 \ Bill normal 



f Crest in adults long . . 



t Crest in adults short or lacking 



I Tarsus feathered 



1 Tarsus partially or entirely bare 



PaiuUon haliaetus crlstatus. 



Baza loi)]iotcs bur Diana. 

 Baza jerdoni. 



Microliierax frincjillarius. 



Cerchncis tinnuncula saturata. 



. . Falco severus sevcrus. 

 Falco 2)en'grimts calidus. 



MachcEvamphus alcinus 



Pcrnis ptilorliyncJiiis ptiloyhiinclius. 

 Periiis ptilorlnjnchus ruficoUis. 



3 

 36 



11 

 9 



10 



12 

 17 



VOL. V, NO. 2, 1922. 



