414 THE ZOOLOGIST. 
with their small clusters of Acer pseudo-platanus, and frequent 
small ponds, afford just the conditions that suit this bird. No 
table land is too exposed or too elevated; provided there is a 
cluster of two or three trees and a pond, there will be Lesser 
Whitethroats. This lively bird has a loud attractive song, consisting 
of four notes quickly repeated, then another four a shade lower, 
then a third and a fourth four, thus:—‘*""*++++,,,, Rees After 
the last four the song dies away in a beautiful little trill. It has 
also a note like the Whinchat’s, softened and modified. The 
Lesser Whitethroat’s note has ceased by the beginning of July, 
when the pretty and frequently repeated trill is much missed. 
This bird may frequently be seen inspecting the intruder from the 
leafy cover of its favourite tree, Acer pscudo-platanus. 
The Wood Wren is somewhat more local, but in suitable 
situations is sure to be heard. ‘I'all trees and thick underwood, 
firs and Acer pseudo-platanus, deep sheltered “gills” with wooded 
sides, and large woods, are the favourite haunts of this bird; 
where these prevail it ascends to 1000 feet, and to the borders 
of the moors. 
The Willow Wren ascends the dale to Angram (1200 feet) ; 
but I have no special notes about it, from which I conclude that 
the bird is rare here. 
The Chiffchaff ranges up to little above 700 feet. The steep 
wooded sides of valleys and extensive woods, with tall firs and 
beeches, or any tall trees, are the favourite haunts of this bird. 
It is not so common as the Lesser Whitethroat, but considerably 
more common than the Wood Wren. 
The Common Wren ascends to 1000 feet, perhaps higher. 
The Rock Dove breeds at Guy’s Cliff, and at Brimham Rocks. 
On May 13th, 1869, one flew out of a hole bored for more than a 
.yard into the peat on the top of a crag amongst the Hare Head 
rocks. A yard from the nest I picked up two eggs, one broken, 
the other addled; these may have been turned out by a Cuckoo, 
hut I had no opportunity of proving this point. The Rock Dove 
only lays two eggs. 
On August 12th, 1871, Mr. Ormerod shot a Grey Hen on 
Cockley Hill (1300 feet), on the moors east of Lofthouse. 
The Grouse is a capricious bird in its choice of residence. 
The fact that they do not abound everywhere on the moors is 
