Stripped foliage. What the hell?

I've been blaming my chickens but I came back from 3 days away where the chickens have been locked in the shed the whole time.

And the rockmelon seedlings that had some nice big leaves on them - well no leaves anymore.

I am not sure but I think it might be rabbits possums or koalas that are terrorising my vegetable garden at the moment.

I hate my chickens sometimes

Sure they give me lovely eggs and I like the way they free range and keep them millipedes and earwigs down.

But the destroying of my rockmelon plants - not so much.