I have 5 Isa Browns. Three are 2+ and two are 1+. A couple of weeks ago I noticed one of the older ones not doing so well and at the sane time there was aggressive behaviour towards her by a couple of the others. After watching for a bit it became clear they were deliberately keeping her away...
Clearly I need to provide some ventilation for my girls (6 laying hens max) - especially over the winter and wetter months. I live on the west coast of BC, Canada on an island near the US border. Summers can be very warm for a period of time but for the most part it’s a fairly moderate climate...