I go on an annual duck hunting trip with college buddies. A field bred golden comes with us, and she has a neoprene vest that she wears for warmth. Last year when we got back to the house it seemed a few different nights that she was shivering. We couldn't tell if this was because she was cold or she was excited to be out in God's country retrieving ducks. It was around this time of year, air temps were in the 30s-50s and there was no ice on any of the wetlands yet. These were not all day sits, usually a morning hunt followed by scouting and then an evening hunt. I am very into bird dogs and although she is my buddy's I often tend to her and that is why I'm asking. I'm looking at ordering a dog thermometer but wondering about opinions and advice from the long-time bird dog owners on this site. Field bred goldens are absolutely beautiful, I think of her all the time.