Bearing in mind some of the more extraordinar y guesses submitted for previous photographs in this Monthly Marathon series, such as a Crimson-winged Finch Rhodopechys sanguinea that, to one contestant, looked like a Mandarin Duck Aix galericulata, it is probably not safe to assume that everyone will have recognised the bird in November's picture (plate 345 in volume 93, repeated here as plate 23) a

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