We have 2 Nigerians Dwarf does (sisters), one of whom is due to kid mid-May. We are planning to bottlefeed the kids. Sooner or later, I want the babies to return to the goat pasture with the 2 older does. How long do I have to keep the kids separate from their Mom? If I return them to the the goat barn/pasture where their mom is, will she recognize them and try to mother them? Since they will be bottle fed, I assume they won't try to nurse her.