I think, indendent from the subject you try to shoot, the requirement of holding the camera safe and still, being it rabbit action or close-to-ground macro with long exposure times.
My solution for both scenarios is a tripod called "Power Dwarf" here. It's a
Sirui AM-223 that have combined with the
Leofoto QS-60 quick link system that is also installed on my travel tripod to allow me to flexibly swap center column on the travel tripod as well as the heads between these two tripods. I have got a ball head and a Flexshooter Mini, so if I refer to your requirement, I bring the "Power Dwarf" in the lowest position (i.e. flat legs) and put the Flexshooter Mini on, which gives me de facto a Gimbal type of setup virutally on the ground. The Arca clamp of the Flexshooter is about the heigth of big smartphone standing upright off the ground (sorry, but I am travelling at the moment and don't have a ruler handy) and it can safely handle something like a Z8 with a 500mm f4 on it.
In case you have uneven ground you have still the posiibility to find a proper position by adjusting the legs, but as you can see, even with the legs in shortest position it provides proper support even for a pretty bulky setup.
I wouldn't buy it for the reabbits only, but if you shoot action on ground level more often, it could be a solution.
View attachment 100730
Please forgive the quality but it was just a quick and dirty shot with my iPhone in the accomodation room.
It's pretty similar to the concept of
@cmc4214 , just with a different tripod and the added feature of having quick release for tripod heads. For clos-up and macro I still prefer a conventional ball head instead of the Flexshooter and both live happily on either tripod / center column.