Jackdaw with white patches on wing and tail feathers.
No interactions present.
Is this leucism? This usually results is more patchy widespread lack of pigment, but the white looks very defined on this one.
OU Student BSc Natural Sciences
We have lots of these birds with white feathers down 'our' way (Penzance, Cornwall)including Crows and Blackbirds. We have been seeing them for a couple of years now. It will be interesting to know if it is Leucism.
Dave. Student FDa Conservation and Countryside Management.
See http://ispot.org.uk/node/4725 for lots more on leucistic crows...
As Bob says visit the above observation for a discussion on leucism. However, just to recap. Albinism is caused by faulty genes and affects the whole animal. Leucism is caused by many different factors, some perminant, as in your bird, and some temporary. Also it can affect anything from one feather to the whole animal.
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Someone mentioned to me that consumption of bread and other human foods is linked to pigment loss/leucism in blackbirds and carrion crows. Doesn't sound terribly scientific, but would be interested to hear your thoughts.
I've not heard about such a link, however, it would not surprise me. There is a link between low nutrient intake and pigment loss. Pigmentation costs energy to produce, especially melanin (black pigmentation). As processed foods, especially white bread is low in the nutrients birds require then it is bad for them. Worse still white bread swells in their stomachs and so the bird does not feel hungry even though it has eaten very little. All this leads to a situation where melanin production would be stalled during feather production.
In other words don't feed white bread to birds!
Lat/Lng: 51.938219685124, -0.98695635795593
OS grid ref: SP697271