THE PFREGRINE FALCON. 379 
lished itself some years ago on the towers of Notre Dame in Paris, 
and every day captured several of the tame pigeons which fly at 
liberty in the city. This continued for a month, and was only put a 
stop to by the proprietors of the pigeons keeping their pets shut 
up. Thus deprived of its means of existence, the Falcon soon dis- 
appeared. 
Notwithstanding the magnificent powers of flight of the Pereg~ine 
Fig. 267,—The Hobby. 
Falcon, it is not always successful in its forays. Naumann narrates 
that he saw a Pigeon pursued by one of these destroyers throw itself 
into a lake, dive down, and shortly after emerge in another part, thus 
baffling itsenemy. When a Pigeon is harassed by a Falcon it endea- 
vours to mount above its enemy; if it succeeds in this it is saved, 
for the Falcon becomes fatigued, and gives up the pursuit. 
Ravens are inveterate enemies of the Peregrine Falcon. They 
have frequent fights, in which the former sometimes prove the con- 
querors. A Raven has been known to break the skull of a Falcon 
with a blow of its bill. 
