The largest bird I have seen collide with a plane (Pakistan Boeing 777 here). Herring gulls weigh up to 1.5kg/3.3lbs, so not something you want to happen too often.
VIDEO gull strike
The largest bird I have seen collide with a plane (Pakistan Boeing 777 here). Herring gulls weigh up to 1.5kg/3.3lbs, so not something you want to happen too often.