Prats XXI. 
i 4 
J 
Se aa SS cin GS ene eee ewe, 
eet ap as ee 
= Eas 
> 
yy 
errr er er ing 
1. 2, Head and leg of White-headed Stilt (Himantopus leucocephalus). 3, 4, Ditto of Banded Stilt 
(Cladorhynchus leucocephalus). 95, 6, Ditto of Red-necked Avocet (Recurvirostra novehollandie). 
All reduced to two-thirds natural size. 
