In 12 feather meal samples, which were collected from six states and China, they found 59 pharmaceuticals and personal care products. Each sample was found to contain antibiotic residues (testing positive for between 2 and 10 different drugs)
Feather meal may be a reasonably priced fertilizer for the lawn but I don't know that I would want to feed it to the bugs, worms, and eventually to the birds or other wildlife in the yard or garden, plus I have a dog. Perhaps I will look for alternatives such as corn gluten or alfalfa until this is sorted out. Good eye opening article though.