Bird Colours Unravelled

Understanding bird colours is an interesting and fascinating subject, but very complex. The main reason for this is that the colours that the human eye perceives, are actually reflected or refracted light waves; the reflected light waves according to one of two different colour systems. To understand colours is, therefore a hybrid science between biology, optics, chromatics, chemistry, physics, psychology and genealogy.

The reason why conditions such as leucism and melanism have a number of ...