Document 237
Blokpoel, H. and G.D. Tessier. 1987. Control of ring-billed gull colonies at urban and industrial sites in southern Ontario, Canada. Proceedings of the Eastern Wildlife Damage Control Conference, Gulf Shores. 3:
Blokpoel, H. and G.D. Tessier. 1987. Control of ring-billed gull colonies at urban and industrial sites in southern Ontario, Canada. Proceedings of the Eastern Wildlife Damage Control Conference, Gulf Shores. 3:
