. Bulletin of the British Ornithologists' Club. 1959 25 Vol. 79. Mallard. Left: immature female, September 1958. Right: adult female, April 1958. Further Remarks on the White Neck-Spot Variant in the European Green-winged Teal by Dr. James M. Harrison and Dr. Jeffery G. Harrison Received 20th October, 1958 In a previous paper1 we reviewed examples of the white neck-spot variant in the European Green-winged Teal, Anas crecca crecca Linnaeus, and the Yellow-billed Teal, Anas flavirostris flavirostris Vieillot, and we concluded that this represents an ancestral character common to both o

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. Bulletin of the British Ornithologists' Club. 1959 25 Vol. 79. Mallard. Left: immature female, September 1958. Right: adult female, April 1958. Further Remarks on the White Neck-Spot Variant in the European Green-winged Teal by Dr. James M. Harrison and Dr. Jeffery G. Harrison Received 20th October, 1958 In a previous paper1 we reviewed examples of the white neck-spot variant in the European Green-winged Teal, Anas crecca crecca Linnaeus, and the Yellow-billed Teal, Anas flavirostris flavirostris Vieillot, and we concluded that this represents an ancestral character common to both of these closely related species, possibly also indicating a reversion towards the white neck-ring, as seen typically in the Mallard, Anas platyrhynchos platyrhynchos Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Taylor, Nancy M. Oxford : Clarendon Press

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