THE BIRDS OF SOUTH-WEST AND PENINSULAR SIAM. 



55 



^ q f Toes markedly webbed 



t Toes practically free to the base 



„„ f Bill,long, mucli exceeding the tail 



1 Bill moderate, not much if at all exceeding the tail 



n- J Bill strongly curved . . 

 ( Bill almost straight . . 



„n J Smaller ; top of head with a single median stripe 

 [ Larger ; top of head much striped 



Numenius ph. plimopus. 

 . Numenius a. lineatus. 



23 



24 



(Bill widened and pitted at the tip 

 I Bill not Avidened or pitted at the tip 



I Tail barred . . • . « 



I Tail not barred 



Macvorliamphiis g. taczanoivskii. 



Limosa limosa ynclaniifoklcs. 

 Limosa lapponica novae-zelandiae. 



25 



26 



Bill from gape not less than the tarsus or only slightly less 

 Bill from gape less than tarsus 



("Bill straight or slightly curved downwards 

 [ Bill curved upwards 



„„ f Tarsus much longer than middle toe and claw 



I Tarsus equal to, or shorter than, middle toe and claw 



„„ f Wing over 5 inches ; rump white 



I Wing under 5 inches ; rump like the back . . 



20 

 34 



21 

 25 



22 

 23 



24 



26 

 33 



27 

 31 



29 



28 



29 



( Legs red or reddish 

 \Legs sage-green 



Totanus ochrophiis. 

 Tringoidcs hypoleucos. 



Totanus stagnatllis. 



Totanus calidris. 

 Totanus fuscus. 



Terekia cinerca. 



„p. f Secondaries pure white 



t Secondaries barred brown and white 



„, (Bill very slender 



"^ 1 Bill much stouter .. 



( Inner and middle toes united at the base by a membrane ; 

 „i bill stout ; tarsus less than 2 inches .. .. Psendoglottis guttifcr. 



'. laner and middle toes hardly united at the base by a mem- 

 ( brane; bill more slender ; tarsus more than 2.25 inches Glottis nebularius. 



[Wing 6.5 inches and over ; sexes markedly ditTerent in 

 .,„ breeding plumage 



I Wing less than 5.5 inches; sexes practically alike in 

 [ breeding plumage 



Pavoncella pugnax. 

 Rhyacophilus glareola. 



34 



Eyes not placed far back in head 

 Eyes placed far back in head 



„- fBill from gape not longer than tarsus 

 \Bill from gape longer than tarsus 



f Only, first primary with shafts wlrite 

 I All primaries with shafts partly white 



„„ f All tail feathers pale brown ; middle toe 0.9 inch 

 I Outer tail feathers pure white; middle toe 0.75 inch 



„„ (Bill straight ; wing about 7 inches 



(Bill decurved at tip ; wing less than 6 inches 



„q (Bill narrow ; wing about 5 inches 

 iBill broad ; wing about 4 inches . . 



30 



32 



Limonitc's iiiinuta. 



Limonites m. subiiiinuta. 

 .. 'Limonites teiiii)ii)icki. 



Tringa tenuirostris. 



Anci/IocJiilns subarqnafus. 

 Limicola platyyhtjncha . 



35 



40 



36 



38 



37 



39 



VOL. V, NO, 1, 1921. 



