There was a litter of 6 kittens (about 3 weeks old) in some bushes on my property, now there are just 3. I think she moved 3 of them under our house. Does this mean she may have abandoned the other 3? I haven't seen her tend to the 3 in the bushes for a whole day now. I watched her walk right by them while they were meowing and go under the house. What should I do? Don't know if I should leave them or get involved. Please help.

It probably means she won't move them until she knows no one is watching, possibly when it's dark.

She obviously moved the first three and no one saw her and perhaps she got interrupted before she could move all of them.

Whose cat is it?