Couldn't we just replace all birds with robot birds? Then the Scare-C'Robot could easily get rid of them with a simple EMP blast. Unless someone invented angry-robot-birds. I don't know if angry-robot-birds would be vulnerable to EMP.
I'm pretty sure scare crows would be easier than replacing all birds. And they already have robot birds.
It wouldn't be
that difficult. Start out with a bunch of climber-bots, like monkeys. Yes, robot-monkeys. The robot-monkeys are programmed to climb through all of the trees looking for bird nests. When they find nests they distract the birds and then replace any eggs with robot-bird-eggs. The real birds won't know the difference and will look after the robot-bird-eggs until they hatch. They'll even teach the little robot-birds how to fly.