THE BIRDS OF SOUTH-WEST AND PENINSULAR SIAM. 



107 



STRIGIFORMES. 



Owls. 



^ /Middle toe pectinate on inner margin . . » 



I Middle toe not pectinate on inner margin 



n /Colour above rich bay, smaller . . 

 (Colour above greyish yellow, larger 



„ /Facial disc and rul¥ well marked 

 1 Facial disc and ruff ill marked . . 



4 i Upper surface spotted with white 

 \ Upper surface not spotted with N\'iiite 



_ j Ear tufts well marked 

 ( Ear tufts wanting 



« / Size large, wing over 12 inches . , 

 I Size small , wing under 8 inches 



„ / Tarsi nearly naked . . 

 i Tarsi mainly feathered 



o / Paler ; under surface of tail with 5 cross bars 

 (Darker ; under surface of tail with 20 cross bars 



C Smaller ; wing less than 14.3 inches, 

 q I under surface barred ; no shaft stripes to feathers 

 I Larger ; wing more than 16 inches, under surface 

 i not barred ; with shaft stripes to feathers 



,^ /Claws and bill pale clear yellow 



1 Claws and bill corneous or tinged with greenish 



,, /Larger ; wing over 7 inches ; forehead whitish 

 1 Smaller ; wing under 6 inches ; forehead not white 



Photodilns hadius. 

 Tyto flammea javanica. 



Strix orientalis orientalis. 

 Strix indranee maingayi. 



C Feathering not extending to base 

 ,„ J of toes ; more uniform above ; smaller 

 I Feathering extending to base of toes ; 

 [ more blotched with black above ; larger . . 



,„ (Larger, wing over 5.6 inches ; toes more feathei'ed 

 (Smaller, wing less than 6.3 inches ; toes less feathered 



Otus scops malayana. 



Otus bakkamoena Icttia. 

 Otus b. lenqnji. 



14 



/Barred above 

 1 Uniform above 



,f. /Smaller, with a cervical collar . 

 ( Larger, without a cervical collar 



,g/Wing over 8 inches 

 (Wing less than 8 inches 



, „ / Darker above 

 1 Paler above 



Glaucidium hrodiei brodiei. 

 Glaucidmm cucidoides cuculoides. 



Ninox scutulata malaccensis. 



Ninox scutulata scutulata. 

 Ninox scutulata burinanica. 



13 



15 



16 



17 



l« Gyldenstolpe, Kungl. Sv. Vet. Akad. Handl. 

 56, No. 2, 1916. 

 J. Robinson, Journ. F. M. S. Mus. vii, 1917. 

 K- Kloss, Ibis, 1918. 



L. Eobinson and Kloss, Journ. N. H. Soe. Slam, 



iii, 1919. 



M. Baker, Journ. N. H. Soc. Siam. iii, 1919. 



(first part). 

 Baker, Journ. N. H. Soc. Siam, iii, 1919. 



(second part). 

 M. I. Baker, Journ. N. H. Soc. Siam, iv. 1920. 



(third part). 



VOL. V, NO. 2, 1922. 



