Please note: Due to a scheduled server maintenance, BOLD Systems will be offline on Monday Sep 22, 2025 from 3:00 PM to 4:00 PM EDT. Thank you for your patience and understanding.
You've been logged out. Click here to log back in.
full article at Wikipedia
![(Anas acuta - 1430 20472 2005) @14 [ ] Copyright (2010) Unspecified Unspecified](http://v3.boldsystems.org/pics/_w300/BRDC/100_0169copy%2B1138651858.jpg "(Anas acuta - 1430 20472 2005) {} [ ] Copyright (2010)")
![(Anas bahamensis - MACN-Or-ct 273) @13 [ ] Copyright (2012) MACN Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"](http://v3.boldsystems.org/pics/_w300/BARG/MACN-Or-ct_0273_d%2B1334245102.jpg "(Anas bahamensis - MACN-Or-ct 273) {} [ ] Copyright (2012)")
![(Anas carolinensis - 1B-2590) @14 [ ] Unspecified (default): All Rights Reserved Unspecified Unspecified](http://v3.boldsystems.org/pics/_w300/HCBR/Anas_crecca.jpg "(Anas carolinensis - 1B-2590) {} [ ] Unspecified (default): All Rights Reserved")
![(Anas crecca - UWBM 61324) @14 [ ] Copyright (2008) Burke Museum of Natural History and Culture Burke Museum of Natural History and Culture](http://v3.boldsystems.org/pics/_w300/KBPBU/IMG_2785%2B1140899578.JPG "(Anas crecca - UWBM 61324) {} [ ] Copyright (2008)")
![(Anas flavirostris - MACN-Or-ct 3681) @11 [ ] by-sa Shanthanu Bhardwaj Unknown](http://v3.boldsystems.org/pics/_w300/BARGT/Anas_flavirostris_Shanthanu_Bhardwaj%2B1736800160.jpg "(Anas flavirostris - MACN-Or-ct 3681) {} [ ] by-sa")
![(Anas georgica - MACN-Or-ct 271) @13 [ ] Copyright (2012) MACN Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"](http://v3.boldsystems.org/pics/_w300/BARG/MACN-Or-ct_0271_d%2B1334244862.jpg "(Anas georgica - MACN-Or-ct 271) {} [ ] Copyright (2012)")
![(Anas gibberifrons - 1B-956) @12 [ ] CreativeCommons - Attribution (2010) Erika Tavares Royal Ontario Museum](http://v3.boldsystems.org/pics/_w300/BROMB/BROMB593-07_-_157431_B%2B1219071360.JPG "(Anas gibberifrons - 1B-956) {} [ ] CreativeCommons - Attribution (2010)")
![(Anas laysanensis - USNM 643458) @13 [ ] Unspecified (default): All Rights Reserved Unspecified Unspecified](http://v3.boldsystems.org/pics/_w300/SIBHI/100_4861%2B1299177801.JPG "(Anas laysanensis - USNM 643458) {} [ ] Unspecified (default): All Rights Reserved")
![(Anas platyrhynchos - FJ231505) @15 [ ] CreativeCommons - Attribution Non-Commercial Share-Alike (2012) BioImages: The Virtual Field-Guide BioImages](http://v3.boldsystems.org/pics/_w300/GBIR/duck002%2B1357750868.jpg "(Anas platyrhynchos - FJ231505) {} [ ] CreativeCommons - Attribution Non-Commercial Share-Alike (2012)")
![(Anas platyrhynchos x A. crecca - NHMO-35585) @15 [ ] Unspecified (default): All Rights Reserved Unspecified Unspecified](http://v3.boldsystems.org/pics/_w300/BONSC/C242b%2B1289597332.JPG "(Anas platyrhynchos x A. crecca - NHMO-35585) {} [ ] Unspecified (default): All Rights Reserved")
![(Anas poecilorhyncha - 2003-0117) @11 [ ] Copyright (2013) Takema Saitoh Yamashina Institute for Ornithology](http://v3.boldsystems.org/pics/_w300/YIO/P-YIO-63563-01%2B1266825338.jpg "(Anas poecilorhyncha - 2003-0117) {} [ ] Copyright (2013)")
![(Anas rubripes - 1330 20195 2005) @14 [ ] Copyright (2010) Unspecified Unspecified](http://v3.boldsystems.org/pics/_w300/BRDC/100_0152%2B1138389444.jpg "(Anas rubripes - 1330 20195 2005) {} [ ] Copyright (2010)")
