'Sheep' in the Bible

"Suppose one of you has 100 sheep and loses one of them. He leaves the 99 in the wilderness and looks for the one that is lost until he finds it, doesn't he?

Then he goes home, calls his friends and neighbors together, and says to them, "Rejoice with me, because I've found my lost sheep!'

"Suppose a man among you has a servant plowing or watching sheep. Would he say to him when he comes in from the field, "Come at once and have something to eat'?