Sigh... If the issue was low pregnancy rates then this might be needed but typically pregnancy rates even birth rates are not the problem. It is fawn survival. As mentioned someplace else. In NW Colorado the studies are showing 90% pregnancy rate and of those 70% or more of the does are carrying twins. Really hard late and cold winters can cause some of the doe to abort but having that on a large scale is really rare.
The real problem is keeping the babies alive a year. The study I helped with in NW CO had significant neonatal (babies) mortality when they were first born. The study, which last I heard, was still tied up in court by the environmentalist(Sierra Club types), showed that targeted removal of predators, specifically black bears, had a huge impact on fawn recruitment and survivability. Same held true for lions and for bobcats. Coyotes not so much...
The money and effort would be much better spent on things to help fawn survival, especially new fawn survival. Closure of fawning areas to atvs, hikers, mountain bikes, etc. Targeted predator removal in high use nurseries. Habitat improvements, removing or rebuilding old sheep fences, etc. The study I worked with, showed that once the fawns reached a few weeks old (like 4 or 6) they had a significantly higher survival rate.
