colour aberrations

Black-necked Grebe (Podiceps nigricollis) affected by progressive greying, Dayet Aoua, Morocco, May 2015 (Saad Rih Wildlife Photography).

Black-necked Grebe affected by progressive greying (not leucism)

A Black-necked Grebe (Podiceps nigricollis) affected by progressive greying photographed at Dayet Aoua in the Middle Atlas Mountains by Saad Rih. (It’s not a leucistc bird as stated before, see the comment in the update below). Un Grèbe à cou noir touché par le ‘grisonnement progressive’ photographié à Dayet Aoua dans le Moyen Atlas par Saad …

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Mystery wheatear (Oenanthe sp.) photographed in Morocco

This wheatear with a strange plumage was photographed in Morocco by Chris Smallbones last March and forwarded to us by his colleague Mike Langman. It’s difficult to assign a name to this ‘white-eared wheatear’. It appears that it’s an abnormal individual. But, is it a Black Wheatear (Oenanthe leucura) or maybe a hybrid between this …

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Leucistic Little Ringed Plover (Charadrius dubius), Essaouira (Leander Khil).

Leucistic birds found in Northwest Africa

Leucism in birds is a partial or total lack of pigments (melanin) in the feathers resulting in these becoming white. It’s genetically inherited and can vary from only some white feathers (partial leucism) to totally white individuals (total leucism). The eye colour is always normal in leucistic animals (unlike in albinos). However, “not every white …

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