Media type: E-Article Title: Colour-Sense in Birds—Blue and Yellow Crocuses Contributor: TEGETMEIER, W. B. Published: Springer Science and Business Media LLC, 1877 Published in: Nature, 16 (1877) 400, Seite 163-163 Language: English DOI: 10.1038/016163b0 ISSN: 0028-0836; 1476-4687 Keywords: Multidisciplinary Origination: Footnote: