European Greenfinch - Greenfinch with a yellow beak

Description:

Fixing the ‘Yellow Beak’ mutation in the wild-type European Greenfinch was my second objective, after the ‘Pastel Isabelle’. This objective was achieved this year (2012). For the record, the ‘Yellow Beak’ yellow factor is autosomal recessive. A different shade of green is observed. The beak and the tips of the legs are yellow. There is no white in the plumage, particularly on the belly. The yellow lipochrome is particularly bright.

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