Avian Hazard Advisory System

Graphic showing Herring Gull data of the Breeding Bird Survey Abundance Data, NBD, USGS


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Graphic showing Herring Gull data of the Breeding Bird Survey Abundance Data, NBD, USGS

warning !


The Avian Hazard Advisory System (AHAS) was constructed with the best available geospatial bird data to reduce the risk of bird collisions with aircraft. Its use for flight planning can reduce the likelihood of a bird collision but will not eliminate the risk. The AHAS organizations are not liable for losses incurred as a result of bird strikes.