
1) Animal order 2) Ducks 3) Order anseriformes
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https://www.crosswordclues.com/clue/anseriformes

Anseriformes is an order of birds. It comprises about 150 living species in three families: Anhimidae (the screamers), Anseranatidae (the magpie goose), and Anatidae, the largest family, which includes over 140 species of waterfowl, among them the ducks, geese, and swans. All species in the order are highly adapted for an aquatic existence at the ...
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http://en.wikipedia.org/wiki/Anseriformes

• (n. pl.) A division of birds including the geese, ducks, and closely allied forms.
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http://thinkexist.com/dictionary/meaning/anseriformes/
An`se·ri·for'mes noun plural (Zoology) A division of birds including the geese, ducks, and closely allied forms.
Found on
http://www.encyclo.co.uk/webster/A/89

[
n] - ducks
Found on
http://www.webdictionary.co.uk/definition.php?query=Anseriformes

Anseriformes A division of birds including the geese, ducks, and closely allied forms.
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http://www.wordinfo.info/words/index/info/view_unit/142/
order Anseriformes noun ducks; geese; swans; screamers
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https://www.encyclo.co.uk/local/20974
No exact match found.