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TIIE CONDOR 
Vol. XII 
under side of a drooping palm leaf near the tip of one of the terminal pinnules. 
These are somewhat concave, so that the nest is attach t by about one-half its 
circumference along one side, the other side remaining free. In such a position 
even the nimblest lizard would find it very difficult to reach; vet a further precau- 
tion is taken by attaching to the bottom of the delicate structure, by means of 
spider webs, shreds of coarse bark, dry leaves, bits of rotten wood, etc., so that the 
Fig. 18. NESTS OF TROPICAL FLYCATCHERS, R H YN CHOCYCLUS 
CINEREI CEPS ON THE LEFT, AND TOV/ROSTRUM 
CINEREUM ON THE RIGHT 
whole nest is sometimes more than half a foot long, and closely resembles a bit of 
loose rubbish caught on the end of the leaf. (See Fig. 17.) 
It is in nests of the fourth class that we find the most striking examples of 
protective adaptation, and these for themost part in the great family of Tyrannidae. 
The nest of the splendid Royal Flycatcher, Onychorhynchus , is no less remark- 
able than the bird. It is a fusiform structure, sometimes two feet in length sus- 
pended by the top from a long drooping branch or trailing liana, usually over a 
