Ringbill definitions

Ringbill

• (n.) The ring-necked scaup duck; -- called also ring-billed blackhead. See Scaup.
Found on http://thinkexist.com/dictionary/meaning/ringbill/

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Ringbill

Ring'bill` noun (Zoology) The ring-necked scaup duck; -- called also ring-billed blackhead . See Scaup .
Found on http://www.encyclo.co.uk/webster/R/84

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