how long before a hen's eggs hatch?
Hatching, Rearing, and Care of Young Poultry. For the small poultry keeper there is the choice of two methods of hatching chicks - natural or artificial. The best idea is to gain experience and confidence in both. Hen eggs take 21 days to hatch, duck and turkey eggs 28 days, most goose eggs 28 - 30 days and Muscovy eggs 35 days. Some very small bantam eggs may be a day early and really large poultry such as Cochins may be a day extra.