TY - RPRT TI - The role of thyroxine on the production of plumage in the American Kestrel (Falco sparterius) AU - M.J. Quinn AU - J.B. French AU - F.M.A. McNabb AU - M. A. Ottinger PY - 2005 UR - https://pubs.usgs.gov/publication/5224445 ID - 5224445 ER -