Be sure to include birds in your disaster planning. Plastic poultry transport crates/coops work well for transporting chickens if evacuation is necessary. Vehicle interiors should be warmed in winter or cooled in summer before transporting birds.
Transfer birds to more suitable housing as soon as possible to facilitate feeding and watering. Line crates or cages with shavings or other absorbent material for ease of cleaning. At the evacuation site, house birds away from noisy areas and other flocks, and protect them from the weather and predators.
Source: American Veterinary Medical Association
Avian influenza refers to the disease caused by infection with avian (bird) influenza (flu) Type A viruses. These viruses occur naturally among wild aquatic birds worldwide and can infect domestic poultry and other bird and animal species. Avian flu viruses do not normally infect humans. However, sporadic human infections with avian flu viruses have occurred. The resources below offer additional information on biosecurity for your birds and avian influenza preparedness.
Here is a video published by the USDA on knowing your birds and checking for signs of illness.