Strangest thing you have run across while hunting

1st. There are black cougars.

2nd. The thing you saw standing up, I'm not saying this is it for sure, but i have seen about 8 or 9 whitetail doe in breeder pens across the country who stand on their hind legs to look at you when your doing something they are interested in. I know that's not alot of them in comparison to the total numbe that I'm around all the time, but it's enough that I don't think it funny or odd anymore. I'm not talking about momentarily lifting up and then going back down, I'm saying I've seen die that have it down as a habit to stand upright to watch me and the guys and can hold the pose for a good while.
It would make sence that in a grain field one would stand to see you and then get down to bolt.

I'm (again) not doubting you, just saying it's possible.