Birds are a big hazard to aircraft, but it's tricky to retain them away from airfields. Various techniques are explored. Beautiful birds by feeding them a bait containing stupefying substances is experimented with,[60] and it may be feasible to scale back their figures on airfields by lowering the amount of https://www.bing.com/maps?osid=f8562f0e-eead-48b3-9f57-b381dc5086b5&cp=47.640333~-122.403735&lvl=16&imgid=85a91c6b-1819-49c9-85ca-8fd81d75bd38&v=2&sV=2&form=S00027