What is the most logical next event?

How to stop a macaw from feather picking or chewing
Get a complete physical examination.
Take your macaw to an avian veterinarian for a complete physical checkup. Get blood tests done and test for hypothyroidism, psittacine beak and feather disease.

Available choices: A. Ask the vet to analyze a dropping sample to test for intestinal parasites, like giardia. Although feather picking is often the result of psychological distress, it's important to rule out any underlying health conditions.; B. Also, get an ear exam; sometimes, they will also check for " lichens " from beak disease. If you have any questions, talk to a vet (certified veterinarian) who specializes in feather picking.; C. If you suspect difficulty plucking your macaw, tell the vet. Hawks like to associate feather picking with dignity.; D. The veterinarian will then perform a series of radiographs for the bird to check for health disorders. The vet will also run a physical exam to check intestinal conditions like undigested food and bacteria.;
A.