UNDER GREEN LEA VES 49 
him hovering, like a large moth, over the top twigs of 
a large beech. It is the delicate tree warbler, near 
relative to the willow warblers and the chiff-chaffs ; 
only he is of far more secluded habits than they. 
You may see fifty of the others before you meet with 
the little tree warbler. He frequents high beeches 
and great oaks as a rule, where the woods are broken 
by open glades ; in which spots the delicate wood 
wren and the tree warbler are not uncommon. The 
parts which he resorts to are the very ones about 
which to look for that rare butterfly, the purple 
emperor. 
By taking one more path, through this copse, 
we shall reach the foot of the fir-covered hill that 
overshadows the Valley Moor. The new shoots of 
golden-green and purple are finely contrasted, in this 
bright light, with the old foliage and the red stems 
which rise from what might be a thick lawn of 
whortleberry bushes. These are in flower now : 
when the fruit is ripe the place will be lively for a 
time with children and vipers. And without harm to 
either, for the children know that the reptiles will get 
away as fast as they can, if they only frighten them a 
little. You will meet little toddlers, under the super- 
vision of larger children, stained from head to feet 
with the deep purple juice of the ' hurts.' 
E 
