Thanks so much for helping me with this, Kevin. I really appreciate it.
Those particular cattle were wild, and the first snake, the brown, is one of our most poisonous. The brightly-coloured one isn't poisonous, I think, or not much, anyway. I'm pretty sure that one's a tree snake. Usually, if they're in trees, they're fine; if they're down on the ground, they're baddies.