Summary ¹

The Redhead (Aythya americana) is a medium-sized diving duck, 37 cm (15 in) long with an 84 cm (33 in) wingspan.

Sources and Credits

1. (c) Wikipedia, some rights reserved (CC BY-SA), http://en.wikipedia.org/wiki/Aythya_americana

More Info

• iNat taxon page
• All About Birds-- The Cornell Lab of Ornithology
• Animal Diversity Web
• Biodiversity Heritage Library
• BOLD Systems BIN search
• CalPhotos
• Global Biodiversity Information Facility (GBIF)
• Maryland Biodiversity Project
• NatureServe Explorer 2.0
• NBN Atlas
• VertNet
• Xeno-canto
• 日本のレッドデータ検索システム

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