1913: Gamekeepers on shooting estates in England and Scotland destroyed all birds and animals that in any way posed a threat to pheasants and their chicks.
In Adventures Among Birds, W.H. Hudson recalled a head keeper who slaughtered woodpeckers, blackbirds and thrushes because “he was not going to have the place swarming with birds that were no good for anything, and were always eating the pheasants’ food”; another keeper “shot all the nightingales because their singing kept the pheasants awake at night”.
Source: W.H. Hudson, Adventures Among Birds (1913), pp. 88, 89