What is this strange bird in Lin­colnshire?

Bird Watching (UK) - - Your View -

QCan you iden­tify this bird seen in North Lin­colnshire? Andy C

AIt’s a par­tially leucis­tic (or schizochroal) Black­bird, ie hav­ing a con­di­tion in which a bird has a loss of pig­men­ta­tion to its feath­ers. Some, then, ap­pear wholly white, while others can be pied, like this bird (which could con­ceiv­ably have had one leucis­tic and one nor­mal par­ent). Such birds are gen­er­ally thought to be more vul­ner­a­ble to preda­tors, on ac­count of be­ing more vis­i­ble (they’re some­times shunned by others of their species, too, so lose the safety of num­bers), but there are lo­ca­tions at which whole dy­nas­ties of schizochroal birds have de­vel­oped. Let’s hope your bird is one of the lucky ones.

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