I think I read somewhere....and I'd appreciate it if someone would set me straight about this......that a deer sees "close" to 300deg.....meaning the only place they're NOT looking (when looking straight ahead) is directly behind them.

I'm also certain they'll smell you LONG before they'll see you in most HUNTING scenarios....and their best defense would be with their nose in the wind.

Edit: Also mobo (and I think this is interesting...this conversation).....a deer's ears are always moving around it seems, to me. "I" think they could turn them to block out the wind if it were a detriment (the noise in their ear) to their safety. I could be wrong....but I know they can turn them about any direction they want to!....