I object: one man with a chainsaw would be no match for swarms of angry birds. Several people with nets, perhaps. And having seen several grown men panic when a bat was flitting around the upper reaches of the bar one night, I defy you to claim that people of either sex don't go a tad loony at the thought of some flying thing getting caught in their hair. Add the possibility of pecking/biting, and pandemonium ensues. I know, I know, people are extra phobic about bats, but I bet if it had been a sparrow, all the same people would have started squealing.
The bat story had a happy ending, by the by: one unfazed fellow brought it down to the floor--gently--with his shirt, and I scooped it up and released it outside. Me, I would just as soon have seen it remain indoors and take care of some of the mosquitoes.