Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to stop a macaw from feather picking or chewing [title] Get a complete physical examination. [step] 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.

Ending1: 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. Ending2: Also, get an ear exam; sometimes, they will also check for " lichens " from beak disease. [substeps] If you have any questions, talk to a vet (certified veterinarian) who specializes in feather picking. Ending3: [substeps] If you suspect difficulty plucking your macaw, tell the vet. Hawks like to associate feather picking with dignity. Ending4: The veterinarian will then perform a series of radiographs for the bird to check for health disorders. [substeps] The vet will also run a physical exam to check intestinal conditions like undigested food and bacteria.

Answer format: ending1/ending2/ending3/ending4