Ever kill two birds with one stone?
It’s not that hard to do, really.
Especially if they’re chickens. Bashing in their heads with a stone is really easy.
In fact, if you’ve got them trapped in the coop, you can pretty much wipe out the whole flock with one stone.
Dropping a large paving stone on a bamboo cage full of finches or parakeets will take out half a dozen easily.
Ostriches are another case entirely. Those, you have to wait until they’re asleep, and take really careful aim before hitting them.
Otherwise, they’ll kill one human with one kick.