142 BY THE WATERSIDE ONCE MORE 
being olive-green, tinted yellow, and the 
under parts yellowish white. This warbler 
thus somewhat resembies its cousin the willow 
wren or willow warbler (see Part II, Plate LI). 
The male and female are indistinguishable. 
The delicate little beak is only suited to catch 
insects, moths, flies, caterpillars and such 
creatures, but like the tender robin and 
