CORID® (amprolium) in their water now that they've got 'boots on the ground'. Since they've been caged up, it's unlikely that they've developed much resistance to coccidia. This treatment will not harm them or the environment in any way whatsoever, so prophylactically treating them for this awful, world-wide prolific and opportunistic parasite would be prudent. Pay very close attention to their weight gain and inspect their abdominal, under wing, and base of tail plumage for yeast, lice and mites, legs for sprains and breaks, and feet, both top and bottoms for sprains, breaks and bumblefoot. Make this inspection at least weekly as these rescues have already more than doubled their life expectancy. This type of bird typically spends their days laying on, in, or at least near their food and water so keeping things clean may be challenging. If they break a bone, you might consider processing them for the freezer before infection sets in, while their meat is still safe; expect that they'll be tougher than store-bought birds that were processed closer to 3 months of age. Soup is one option for tough birds, or age them in the fridge for up to a week before cooking. Blessings to you for rescuing them from a cruel and bitter end, locked in a cage without food or water in their foreseeable future.
