My doe is starting to try to prepare her nest two weeks early. I always make sure my rabbits have fresh hay and she's trying to use it to start her nest. She's not due until the 17th of June. Should I be worried?
I wouldn't worry, I'd just make sure she's set up to have the kits and see when it happens. She may just make nests early (I'm assuming she hasn't had a litter for you yet), so remember her behaviour for the next litter. I had one doe that didn't make a nest until the day before.
I also had some rabbits that I'd separated to grow out. The day before I was going to butcher them, one of them in the male area started making a nest. I figured I'd made a mistake, so I butchered the rest and pampered her ahead of the birth. I waited two more weeks and then checked her. She was a male all along. Sometimes you just never know...
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-Le Livre du Colon, 1902
I have been consistently breeding for the last 2 years both pet and meat breeds. First I wouldn't put in nesting boxes until about 3-4 days before the due date. I just put boxes in 2 days ago and they nested the hay but didn't pull fur. If the nesting box is something you cant remove I wouldn't worry. The reason you don't give them the nesting box early is some does tend to turn it into a bathroom, but if she hasn't and just began to make a nest then she most likely knows she is expecting and just is going into nesting early. When she begins to pull the fur that is when I would be expecting her to kit this early just getting overly ready I would say.
Are you 100% sure of the bred date she wasn't in contact or had failed breeding attempts before the buck was successful? My brother had a doe that I rebreed she was beyond unwilling but the buck still completed and she kidded early turns out she had been breed before on an earlier attempt but there was no visual fall off this can be very rare but it could happen.
I wouldn't worry just keep an eye on her if she starts to pull fur then she is going to kit but most likely early nest prep I would just make sure she doesn't start using it as a restroom until the due date.