Feather-damaging behaviour in companion parrots: an initial analysis of potential demographic risk factors.Published in:Avian Biology Research, 2013, v. 6, n. 4, p. 289, doi. 10.3184/175815513X13803574144572By:Kinkaid, Heather McDonald Y.;Mills, Daniel S.;Nichols, Steve G.;Meagher, Rebecca K.;Mason, Georgia J.Publication type:Article