I am pheasant hunting in SD and had a scary incident with my 6 year old YLF. She has been a pheasant hunter her entire life (only ducks she has ever seen are in training and at tests) so this situation is not new to her. We were hunting on Thursday and it was 32 degrees and damp. I usually run one of my dogs at a time out here and rotate the two of them at each spot. On the second turn of the day for my 6 year old we were done with the pass through the cattails and walking through a cut hay field and she began going from hunter looking confused and then just collapsed in the field. She wouldn't move at all and was not shaking. A guy in our group had some peanut butter and I gave that to her and she responded slightly, I got her back to the lodge and got her to eat and drink and she has been doing fine since. She is a very well conditioned dog and has never had an issue in her life of going down in the heat or cold and is genetically sound. Any ideas of what might have happened and what I should do?
I have been giving her lots of food, water, and rest since the occurrence and she looks like she is getting fat so I am wondering if she should get back in the field today.
Any help is appreciated.

