I had three (very) free ranging chickens (now I have two) .... brown, white and grey. About a month ago the fox came by (right next to the house) and brown chicken was no more. White chicken and brown chicken were the very best of friends and did everything together. Grey chicken is a bit shyer and more solitary and brown chicken wasn't particularly nice to her.
Since brown chicken has gone white chicken is only laying soft shell eggs (but is healthy otherwise). However, grey chicken is much happier and is now laying daily!. Both chickens have the same balanced diet and lifestyle - is there anything I can do to help white chicken to rediscover her equilibrium? She has obviously really felt the loss of brown chicken.