I really think it's a stretch to think that a human can pick up on whether or not a doe is in estrus... But, if a stinky buck was marking out the exact spot you were standing in- Yeah, I think you could smell something funny... I've never seen a buck marking out a stinky area like a bull elk though...
"Therefore, wo be unto him that is at ease in Zion!" 2 Ne. 28: 24