182 ADDENDA 
what gay coloured ones, the Great, and the 
Blue, whilst the others are sober tinted. They 
all (except the blue-headed Blue Tit) have 
black heads and more or less white cheeks. 
The great tit is considerably the biggest and 
has a yellow chest. The long-tailed tit has 
the long tail, the blue tit is the only one that 
is markedly bright blue with a yellow front. 
It is only the great tit that utters the ‘ peter, 
peter, peter’ (whilst the others have the 
metallic « chee; chee, chee; -etes) mores) sau 
looks greenish and grey, with a black and 
white head. The blue, marsh and coal tits are 
much alike in shape. Distinguish the marsh 
tit from the coal tit, which it much resembles, 
by the white spot at the back of the head. 
The nests and eggs of the tits. The Long- 
tailed [it makes the beautiful bottle or cocoa- 
nut-shaped domed nest covered with lichen 
(figured on p. 152 and in Part I, p. 86). The 
others build in holes, in stumps of trees and 
the like, sometimes low, often high up, an open 
rounded nest, generally with a very small hole 
of entrance to it in the tree, so that the hand 
cannot be got in, and there is plenty of 
