Yes they can in they aren't properly bonded to them, it's nothing you could have made better but you will have to take the kittens away from her and bottle fed them and take over the care unless you want them to all perish. If you can't handle the responsibility please take the kittens to a rescue that specializes in newborn kitten care and please, PLEASE take the mother in immediately to get spayed. They do it free at the SPCA for anyone that comes in FOR THEIR FREE CLINIC. If you tell them you need help with the cost they will, as long as you live in The city put you in for the free clinic. There's no papers or anything needed to qualify for the free spay and neuter clinic, you just have to call and make the appointment, as thet only do the free clinic on certain days of the month. We've gotten or cats sprayed and neutered free, along with some stats we found and several of our neighbors also got theirs done free as well, after our recommendation.
They don't spay for free for everyone. Contact the shelter and ask them for help/advice.
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