
1) Fish duck 2) Large crested diving duck 3) Merganser 4) Sawbill 5) Sea duck
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https://www.crosswordclues.com/clue/sheldrake

1) Goosander 2) Merganser 3) Sawbill 4) Shelduck 5) Smew
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https://www.crosswordclues.com/clue/sheldrake

• (n.) Any one of several species of large Old World ducks of the genus Tadorna and allied genera, especially the European and Asiatic species. (T. cornuta, / tadorna), which somewhat resembles a goose in form and habit, but breeds in burrows. • (n.) Any one of the American mergansers.
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http://thinkexist.com/dictionary/meaning/sheldrake/

1. <zoology> Any one of several species of large Old World ducks of the genus Tadorna and allied genera, especially the European and Asiatic species. (T. Cornuta, or tadorna), which somewhat resembles a goose in form and habit, but breeds in burrows. ... It has the head and neck greenish black, the breast, sides, and forward part of the back ...
Found on
http://www.encyclo.co.uk/local/20973
Shel'drake` noun [
Sheld +
drake .]
1. (Zoology) Any one of several species of large Old World ducks of the genus
Tadorna and allied genera, especially the European and Asiatic species. (
T. cornuta, or tadorna ), which somewhat resembles a goose in form and ha...
Found on
http://www.encyclo.co.uk/webster/S/85

The Sheldrake (Sheld-Drake, Bargander) is a British duck found in sandy coastal regions.
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http://www.probertencyclopaedia.com/browse/BSA.HTM

HMS Sheldrake was a British Kingfisher Class patrol vessel of 530 tons displacement launched in 1937. She was armed with one four-inch anti-aircraft gun and eight smaller guns plus depth charges. Two Admiralty 3-drum boilers provided a top speed of 20 knots and she carried a complement of 60.
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http://www.probertencyclopaedia.com/browse/RS.HTM

[
n] - Old World gooselike duck slightly larger than a mallard with variegated mostly black-and-white plumage and a red bill
Found on
http://www.webdictionary.co.uk/definition.php?query=sheldrake
No exact match found.