7 
to breed in our rocky cliffs, where it 
chooses the most inaccessible places for 
that purpose. 
In Greenland, and Iceland also, it com- 
monly builds its nest in the holes of rocks. 
This nest is copriposed of sticks, and lined 
with wool, hair, and various other sub* 
stances. When built on trees it is most 
usually placed in the fork of the larger 
branches. The Raven lays five or six eggs, 
of a bluei^h green colour, blotched and 
spotted with brown and ash-colour, some- 
what larger than those of the crow. 
It has been asserted that there exists a 
wonderful antipathy between the Raven 
and the Rook. Mr. Markwick informs us 
that in the year 1778, as soon as a Raven 
had built her nest in a tree adjoining a 
numerous rookery, all the Rooks imme- 
diately forsook the spot, and have never 
returned to build there since. And at the 
Bishop of Chichester's rookery, likewise 
at Broomham, near Hastings, upon a Ra- 
ven building her nest upon one of the trees, 
all the Rooks forsook the spot, though, in 
this instance, they returned to their haunts 
