Young goats are known as kids. We also tend to refer to them as bucklings or doelings. This comes from the practice that most goat breeders have of calling a male goat a buck and a female a doe. Colloquially, goats are referred to as billies and nannies.
The words buck and doe are the apellations of choice. A castrated male goat is known as a wether.
The word kid is also used as verb to describe the caprine (having to do with goats) process of giving birth.
I am a part of 
Be a member on our Facebook page -- Click this Link