EUGENE M. MCCARTHY, PHD GENETICS
All images on this page are of a probable mallard/Canada goose hybrid (Anas platyrhynchos × Branta canadensis) photographed in Branch Brook Park, Newark, New Jersey on July 21, 2016 (specifically between Bloomfield Ave. and Park Ave.). The photos were taken by local resident Josephine Ireri and communicated by her husband Eric Martindale. They are used here with permission. Thanks! These images are of especial interest, because they seem to be the only photos available of such a hybrid.
Eric made the following comments about this unusual creature:
The parental birds in this cross come into potential breeding contact in both North America and Europe. Hybrids of this type were previously reported by ornithologist C. L. Sibley (1938), who says (p. 329) that he confines himself to records of hybrids “about whose authenticity there can be no doubt.”
This is an intersubfamilial cross (Anatinae × Anserinae).
By the same author: Handbook of Avian Hybrids of the World, Oxford University Press (2006).
Work cited: Sibley, C. L. 1938. Hybrids of and with North American Anatidae. IXe Congrès Ornithologique international (Rouen), pp. 327-335.
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