Grimsby, in the Niagara district, has been invaded by millions of wild pigeons. A report says the pigeons have taken possession of all the available woods within a range of five or six miles south of Grimsby. The farmers have turned out with shot guns and other weapons, and are slaughtering them by hundreds. It is believed they have made a temporary roost of the locality referred to. They came from the direction of the south-east. Limbs of many large trees are reported to have broke down with the weight of the pigeons perched thereon.May 8, 1875. Pigeon invasion. Winnipeg Standard 34: 4.