He only eats bits of dried food, hardly anything and it won't fill his stomach. Actually, at the moment he's enjoying a bird on the table outside. I don't think he's sick, as he seems to be in bliss with the birdy, is happily running around in the snow, plays, purrs, cuddles. He's just picky, and this is something I would like to stop.
I never feed them fish (they don't like canned fish or fish snacks) actually.

I'm just worried that he'll lose weight and I don't want him to live on birds or mice. A trip to the vet is of course something I should considder, though the thought of getting him into the carrier is putting me off food Last time he ended up in the carrier after 2 hours of fighting, me bleeding and upset and my husband very late for work.