154 NATURAL HISTORY. 
bling red sealing-wax in color. The wing is represented 
in Fig. 125. 
hese 
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IN 
wore . 
Fig. 125.—Wing of Waxwing. 
254. The third division of the Perchers is that of the 
Fissirostres. The characteristics of this tribe were men- 
tioned in § 236. These, as you have seen, appeared to 
some extent in some of the Dentirostres, especially the 
family of Fly-catchers. The adaptation of the wide, 
gaping mouth, with its bristles at the sides, to the cap- 
ture of insects in flight, is obvious. Some of-the larger 
species of this tribe, however, live on fish. There are 
six families—the Goatsuckers, the Swallows, the Todies, 
the Trogons, the Kingfishers, and the Bee-eaters. 
255. The Goatsuckers, of which you have an example 
in Fig. 118, are for the most part nocturnal, and they 
have the soft plumage and dull colors so characteristic 
of those nocturnal birds of prey, the Owls. They sally 
forth in the evening when the Fly-catchers and Swallows 
have retired to rest, and, like the Bats, skim about in the 
air, mostly near the ground. But while the Bats capture 
such hard-cased insects as beetles, the Goatsuckers take 
into their gaping mouths the soft-bodied moths. When 
these are once in the mouth they can not escape, for the 
bristles fence them in, and the thick saliva which is there 
envelops them. The foot of this bird is curiously con- 
structed. The hind toe, as in the Owls, can be brought 
