This image shows what a typical hand-rearing nursery looks like. “After the incubation of the eggs, the birds are hatched and the chicks placed in large nurseries for hand-rearing. In this nursery setting, the birds are housed alone or in groupings with other birds of the same species. These large nest-bins can be pulled out to allow them to socialize with the other chicks who share their bin and those in the bins next to them. When these nest-bins are rolled in, they provide a secure, dark nest cavity. However, this method of chick-rearing is not as preferable as leaving them with the parents; they are not receiving the attention and socialization that are necessary for development that they would normally receive from the parents” (text and image courtesy Yvonne Van Zeeland in Speer: Current Therapy in Avian Medicine and Surgery). When placed in these bins and rolled in to darkness, the birds are entirely alone, which is terrifying for chicks. They need the parents and siblings to be secure. 
