Our expert says:
4 weeks of age it too early to let the mother sleep outside without the pups. The pups will still require feeing in the night.
The bitch will start gradually weaning from 4-8 weeks. I suspect that the pups will be totally weaned at around 6-8 weeks when their teeth start to erupt. Before you find them a new home ensure that the pups have been dewormed and vaccinated - it is the responsible thing to do. You can re-home from 7-8 weeks.
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