The Natural History of Selborne

Rooks are very much engaged in the business of nidification: but they do not roost on the their nest-trees ’til some eggs are lain.  Rooks are continually fighting & pulling each other’s nests to pieces: these proceedings are inconsistent with living in such close community.  And yet if a pair offers to build on a single tree, the nest is plundered & demolished at once.  Some rooks roost on their nest-trees.