Colour morphs in the collared pygmy Owl glaucidium brodiei are age-related, not a polymorphism

Lin W.-L.Lin S.-M.HUI-YUN TSENG2020-02-032020-02-03201403732266https://scholars.lib.ntu.edu.tw/handle/123456789/453160Colour morphs in the collared pygmy Owl glaucidium brodiei are age-related, not a polymorphismjournal article10.5253/078.102.01152-s2.0-84905638326https://www2.scopus.com/inward/record.uri?eid=2-s2.0-84905638326&doi=10.5253%2f078.102.0115&partnerID=40&md5=225cea4293881d55d52a4952c1f01ae5