Experience with Game Finder anyone?

[Sunray]

"...is to lay down..." All deer offspring do that.
IR only works when there's a heat source. Dead things nor blood give off any heat after a short time.

 

[hounddog]

No experience with roe deer, but whitetail fawns are just as bad when cutting hay. Consider this, you are driving a big loud, smelly tractor with a sickle bar going to town, and these little baby deer are lying in the tall grass, perfectly still, trying to hide. You can be watchful and spot some and stop and run them off, but eventually you hit one. I have never seen or heard of a device to prevent this. I think a dog would just eat the poor things.