Here's a different answer, maybe right, maybe wrong:
- Those two fawns look more like yearlings to me - it's tough to tell though. They're pretty big for four months old.
- Doe (s) that fail to get impregnated on the first few matings continue to cycle through estrous and be bred every 28 days or so until it is pregnant, or there are no more bucks with antlers/testosterone available to breed.
There are plenty of journal articles/studies which state that does may continue this estrous cycling well into March. So just for fun, say this doe was one of those that didn't breed successfully until March. That has her ready to drop fawns in late-August, and she looks just like the one in your photo.
Perhaps your cam will reveal the truth in upcoming photos.
