I don't let my birds out on weekends until 9am sometimes. They are not going to die because I need to sleep in a bit.
But I free range during the day. Will be putting up electric fence shortly (to keep dogs and goats IN) I have farm dogs that keep predators during the day at bay. They are not...
I'm with Jack.
Absolute waste of money, and the poor hens...
Hope you dispatched that fox. Was glad he got stuck until the door opened again... Was he still in there?