We spend winters in Texas and summers in Alaska. Last summer I got 4 established layers from a friend. Had never had chickens before. Had a blast with them they were lots of fun and lots of eggs. I gave them to a couple to winter over and has not gone well. One was killed by hawk and other 3 don't look well and have stopped laying. While they were great pets I do want the egg production. Is it realistic to think I could nurse them back to healthy production or would I be better off getting new chickens?