Mr Smith, Cecils master,² who is a good entomologist, & therefore used to notice natural facts, says a neighbour of his caught a young corncrake while scarcely fledged, not so big as a sparrow, brought it up, and made it so fond of him that the bird followed him about from room to room like a dog, came when it was called never trying to escape. for some months it was kept in a yard with a high wall all round. All at once it disappeared in the night & was never seen again— The Owner thought it must have been Stolen, even when M^r Smith pointed out that it was the time when the bird would have migrated naturally.³

Another neighbour of his had a young cookoo which when the time came for migration grew restless & continually beat itself against the bars of the cage until it killed itself. It had been quite tame before. Neither of these cases could have been imitative instinct.

Cases of instinct not being imitation referring to De Candolle, page 322.⁴