Coccidiosis is a common cause of enteritis in falcons. Young birds are particularly susceptible. The parasite is passed through the faeces and infection occurs via ingestion of contaminated food and water. Signs of coccidia range from poor growth to mild diarrhoea to sudden death. Coccidiosis is always worse during warm wet conditions. Maintaining dry floors in enclosures and regular removal of droppings will aid in coccidia control.