Well, 21 days came and went and the hen left the nest, so I removed them.  She returned and laid two more eggs and then abandoned the nest and the eggs disappeared.

My original mother with the two chicks abandoned them and went back to roosting with the flock.  Her chicks chirp around the chicken house, so I keep feed tossed out and water.  They seem to be doing fine.

My dog killed a chicken so he has to find a new home.  Buddy is a beautiful black lab mix with white nose and chest and four white feet; a nice, loving young dog, just likes chickens too much..