Abnormal coloration in birds: Melanin reduction – Sibley Guides

Melanin Pigment - an overview

The dark side of birds: melanism—facts and fiction

Melanin-based structural coloration of birds and its biomimetic applications, Applied Microscopy

The dark side of birds: melanism—facts and fiction

The dark side of birds: melanism—facts and fiction

The dark side of birds: melanism—facts and fiction

Does melanin-based plumage coloration reflect health status of free-living birds in urban environments?, Avian Research

Colour vision in sengis (Macroscelidea, Afrotheria, Mammalia): choice experiments indicate dichromatism in: Behaviour Volume 157 Issue 14-15 (2020)

Melanin Pathway Genes Regulate Color and Morphology of Butterfly Wing Scales - ScienceDirect

What's in a name? Nomenclature for colour aberrations in birds reviewed

What's in a name? Nomenclature for colour aberrations in birds reviewed

Surprising Animal Color Abnormalities

Melanin-based structural coloration of birds and its biomimetic applications, Applied Microscopy