RT Journal Article SR Electronic(1) A1 Husby, Magne YR 2017 T1 Colour Aberrations in Eurasian Magpies Pica pica in Europe JF Ornithological Science VO 16 IS 2 SP 111 OP 119 DO http://dx.doi.org/10.2326/osj.16.111 UL https://www.pieronline.jp/content/article/1347-0558/16020/111