I'm not sure, there may be more foxes during autumn, but they are so rare that it's hard to see a clear increase.

I really really REALLY want this one as well. I'm collecting all the pets, but the fox is by far the coolest (and it suits my Robin Hood costume

). I could put the fox I own on the iOS version on my Android, but given that this item is so rare, I suspect the person I bought it from didn't get it legitimately (I didn't care at the time, I had tons of duplicated items. But now I want to play fair and square, it's much more fun that way).