No not really. Like I said before, sooner or later (and it obviously varies in different locales) a buck's testoterone level will drop, as will his antlers and his testicles will recede and he will be unable to breed 'damn near every doe'. Also, since as bucks age they become less and less social, especially towards does outside of the rut I seriously doubt 'getting some *** is what he is concerned about. I would like to think that survival would probably be number 1.

Just for a little clarification, could you name a few other mammals that attempt to mount their female companions each time they "sniff at her?"

I'm curious as to what you mean by a buck's testicles "receding". Never heard that before.

timbercruiser- I was doing my rounds at work the other day and one of the girls stopped me. She knows I'm big into deer hunting and wanted to relay something she saw. She was coming back from New York last week at night in the snow and ice and was a little up tight. Then she said "if that wasn't enough I came across a buck mounting a doe right at road side"! This was in upstate Pa. in March.

I have not seen any testies in all the pic I have taken this winter.

It's hard to explain really but very simple when you think about it. I'll attack this in reverse order. We all know how important photoperiodism is to a deer and it's behavior. We know that after the Second Fall Equinox or the 'rutting moon' is what really triggers the rut. After the Summer Solstice (June 21) the days begin to gradually get shorter. As the days shorten the pituitary gland produces a hormone that that enlarges the bucks testicles and causes them to descend. And by the beginning of August they begin to produce sperm. Bucks are unable to breed from generally from the end of April to the end of July. The amount of sperm peaks in November (the rut) and drops rapidly by mid-December (the rut's waning days). And then process of the testicles receeding slowly begins. It doesn't happen overnight and as you can see is a very long possible. Chances are the buck that your friend saw breeding a doe obviously still had enough to breed.