33 33 LOHMANN TIERZUCHT › MANAGEMENT GUIDE Perches Perching is essential for birds reared and housed in alternative systems. It has been demonstrated that pro- viding access to perches before four weeks of age reduces the likelihood of injurious pecking. Perching not only allows roosting birds to exhibit natural behaviour and remove themselves at certain times from the activity within the house. It also assists in movement training and improved utilisation of the house system. Aviary systems are designed with integrated perching; however, you should always ensure this is easily accessible.