Too big

I was patrolling my territory, when a bird landed.... at least, I think it was a bird?

I was behind a plant pot, so could watch it.

I've never seen a bird like this before. It had wings, but it was huge, had really long legs, and its beak was massive.

I made a measurement of it - in my head - with my mouth, and realised I'd never get my little catty jaws round it.

I'd never be able to pounce on it. It was just too big.

I was still on high catty alert, but I couldn't do anything.

Then it flapped off.

I don't know what it was. Strange bird.