Maybe it was more effective when it was first released, but I watched it for the first time less than a year ago and it seemed more like a bad comedy. If birds

Maybe it was more effective when it was first released, but I watched it for the first time less than a year ago and it seemed more like a bad comedy. If birds really did turn on humans (already stretching suspension of disbelief because there's no reason for them to do so) then they would win a few early victories at most. Birds couldn't stand up to modern weapons. And with no Geneva convention in play humans could use chemical etc. weapons against them. The birds wouldn't stand a chance.