In this part of the world rabbits tend to be less frisky from about now until late April ish.They seem to like to breed when the weather is warmer and there is lots of food about.
Look out for fat does from early April, they'll be the ones sitting around, sun bathing, they don't like running when they are full of babies. It's best not to shoot these so you have a good stock over winter.
The best shooting can be from June or July when there are lots of 1/2 to 3/4 grown rabbits about. These are the best eating, nice and tender.
Timings may be a bit earlier in the south.