With the loss recently of a fellow stalker it might be a good time to highlight the symptoms of hypothermia not hyperthermia, now this is not to say this was the cause of his passing to better hunting grounds but it is a good time to bring it up while minds are focus on our own mortality.
I know earlier in the red stag season I was lying on a hilltop watching a tree line at last light, I had two base layers two fleeces and two jackets on and despite it being the middle of September I was shivering with cold. I have a couple of extra fleeces packed for tomorrow’s trip.
I know I got in a bad way while stalking in NZ Mountains in 2002, it was only the fact that my mate had a lot of experience in mountaineering and recognised the early signs that he sorted me out pretty quickly.
Here is a good link, while it is not specific to our sport it gives good advice on how to spot the symptoms.