We have two geese/goose. Dont know if they are M/F. We left the house at 4pm and all was well. We came home at 8:00 and one of them was laying down and when I went out there it stayed down. It barely even peeped. Its legs were crunched up behind them. I rolled it over but didnt see anything. Doesnt seem like an animal got it. They are in a wired fence area so I am thinking a snake or spider? it is drinking but looks very sleepy and barely moves its legs. I put it in the pool/pond but it just sits and barely moves. I saw it do what looked like a tail wag. They are only 16-20 week sold. Any suggestions what it coudl be and how to treat it?