1. what breed is this and how will it be when he is full grown do u have any photo he seems to have long tail 2. and this is all white and is very short has very short legs how will it be when he is grown and what breed it is ?
They both look like Brahma or Cochin mixes to me. That means they should weight around 10-12 pounds at maturity.
Taking all your posts into account, you have a flock of barnyard mix birds. No specific breed jumps out.