Words: Sue Clarke  If your hens are feeling under the weather, it could be one of the three most common respiratory diseases.  Chickens with breathing problems can wreak havoc with your flock and are difficult to identify, but here are some signs to look out for.  INFECTIOUS BRONCHITIS  Other names: IB, ‘chicken cold’ Incubation period: 18-36 hours … Continue reading 3 common respiratory diseases affecting New Zealand chickens