Well, it's a future buck, but taking deer out of the picture for next year, reduces browsing competition, improving everything from songbird nesting habitat which is reduced by overbrowsing, creates a decrease in food for predators, making it more difficult for their litters to survive as their weaning coincides with the fawn crop, and by a reduction in browsing competition with a thinner herd, you have better nutrients for the deer you do have, which amounts to greater growth and development in the younger bucks, getting their bone densities ahead of the game for the following year when his body begins devoting less nutrients to bone growth and filling out his spindly frame and begins having more of these nutrients left over for greater antler devolopment.
So, in short, you did cause a reduction in next years fawn crop, but you also strengthened your little section of the habitat...and if it was a buck fawn, it wouldn't have ended up living on your property anyway, since you have the fact that the majority of yearling bucks get driven out of their home range by the maternal doe herd and end up relocating up to 3 miles in an aspect of deer behavior that conveniently, yet unbeknownst to the deer theirselves, prevents imbreeding in future years and further strengthens their gene pool (i call it intelligent design, although biologists don't). So it's not like that buck would was likely to have ended up residing on your property in the long run...sometimes things that are sad on the small scale, end up good overall.
