DIVIDED INTO GROUPS 211 
Wild Duck, Coot, Skylark, Wagtails and 
Wigeon shape their nests well, the others 
being rough, and the Chiffchaff’s roofed. 
Group IX—Birds that generally build IN 
HOLES 1” trees or trunks : Blue, Coal, Great and 
Marsh Tits (not the Long-tailed Tit), Creeper, 
Green and Great Spotted Woodpeckers, 
Starling (not exclusively), Wryneck, Owls. 
Group X-—Birds that build domed nests : 
House-sparrow (domed if in a tree), Long- 
tailed Tit, Willow-wren, Chiffchaff (better 
described as a hooded nest), Magpie (a 
roofed rather than a domed nest). 
Group XI—Birds (the common ones men- 
tioned in this book) that build nests other than 
the easily seen open regularly cup-shaped 
ones, and more or less peculiar: Blue, Great 
Coal and Marsh Tits vounded nests, but 
in a hole in a tree or elsewhere, with plenty 
of material in the hole; Creeper, in a hole 
in a tree; Cuckoo, lays in other birds’ open 
cup-shaped nests; Green and Great Spotted 
Woodpecker, in holes in trees or trunks ; 
House-sparrow, a domed nest if in a tree, not 
