THE BIRDS OF SOUTH-WEST AND PENINSULAR SIAM. 365 



motacillidae. 

 Wagtails and Pipits. 



, / Upper side plain . . . . • • • • . . 2 



1 Upper side streaked with blackish . . • • • ■ . . 8 



„ j Hind claw longer than hind toe . . • • • ■ . . 3 



1 Hind claw shorter than hind toe . . • • • • . . 5 



2 i Supercilium absent or very small MotacUla flara boreaUs 



\ A long broad supercilium . . . . • • • • . . 4 



J j Supercilium white, crown grey ^i- /• simillima 



\ Supercilium yellow, crown tinged with olive M. /. taivana . 



g (No black gorget, underside yellow M. cincrea casjnca 



\ A black gorget, underside white . . . • • • . . 6 



g fUpperside brownish olive, two black bands on breast DendrnnanfJnts hulicus 



\ Upper parts grey or black, a single black band on breast . . • • 7 



/Greater wing-coverts merely margined with white, 

 „ 1 back always grey M. alba dukhunensis 



1 Greater wing-coverts with the outer webs entirely white, 

 i back grey in winter, black in summer M. a. leucopsis 



Upperside suiJused with green, dark markings slight 



8- Antlius trivialis hodgsoni 



Upper plumage brown, dark markings pronounced . . • • • • ° 



Q f Sides of body coarsely streaked with brown ^ • cefvinux 



\ Flanks not or scarcely streaked . . ■ • • • . . 10 



less than 3.4 inches A. richardi vialayensis 



^Q f Wing less than 3.4 inches A. nchardi maLayensis 



I Wing more than 3.3 inches . . • • • • . . 11 



,, (Hind claw 0.4—0-6 inches, little longer than hind toe A. r. striolatus 



(Hind claw 0-6—0-85 inches, much longer than hind toe A. r. richardi 



530. Motacilla flava borealis Sundev. 



MotacUla flava var. 3 borealis, Sundevall, Kungl. Sv. Vefcens Kandl. 



1840, p. 33 (Lapland). 

 Budytes cinereocapilla, A., p. 363 (Tavoy) ? 

 Budytes viridis, 0. i, p. 161 (Tavoy). 

 Motacilla borealis, E., p. 71 (Patani) ; F., p. 73 (Trang ; Kosoom ; 



Patani). 



In our experience this bird is much less common than the next 

 throughout the Malay Peninsula, and in Bangkok it is also less 

 numerous. 



531. Motacilla flava simillima Hartert. 



Motacilla flava simillima, Hartert, Vog. Pal. Faiin., 1905, p. 289 



(Kamtschatka) ; L., p. 117 (Ghirbi). 

 Budytes flava, A., p. 364 (Mergui to Bankasoon) ; 0. i, p. 162 (S. 



Tenasserim). 



I. Gyldenstolpe, Kungl. Sv. Vet. Akad. Handl. M. Baker, Journ. N. H. Soc. Siam, iii, 1919. 



56, No. 2, 1916. (first and second parts). 



J. Robinson, Journ. F. M. S. Mus. vii, 1917. M. I. Baker, op, eit., iv, 1920 (third part). 



K. Kloss, Ibis, 1918. M. 2. Baker, Fauna Brit. Ind,, Birds, i, 1922. 

 L> Robinson and Kloss, Journ. N. H. Soc. Siam, 



iii, 1919. 



VOL. V, NO. 3, 1924, 



