Scientists aim to describe a single 'tree of life' that reflects the evolutionary relationships of living things. However, evolutionary relationships are a matter of ongoing discovery, and there are different opinions about how living things should be grouped and named. EOL reflects these differences by supporting several different scientific 'classifications'. Some species have been named more than once. Such duplicates are listed under synonyms. EOL also provides support for common names which may vary across regions as well as languages.

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Preferred marks the preferred classification for this taxon.

Recognized By Rank Classification
Species 2000 & ITIS Catalogue of Life: April 2013
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Genus
IUCN Red List Genus
Animal Diversity Web Descriptions Genus
AskNature Genus
Avibase - IOC World Bird Names (2011)
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Genus
BHL: BioDivLibrary's photostream Genus
BOLDS resource for higher-level taxa
BOLDS images II Genus
BOLDS resource for species-level taxa Genus
BioKIDS Critter Catalog Genus
Bird Life History Genus
Birds resource Genus
Clements Checklist resource
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Genus
Conabio Genus
EOL Group on Flickr Genus
EOL Group on Flickr Genus
EOL Group on Flickr Genus
EOL Group on Flickr Genus
EOL Group on Flickr Genus
EOL Group on Flickr Genus
EOL Group on Flickr Genus
EOL Group on Flickr Genus
Fauna Aves Genus
Gulf of Maine Area CoML resource Genus
AnAge database Genus
IUCN Red List
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Genus
BioLib.cz Import
BioLib.cz Import Genus
Integrated Taxonomic Information System (ITIS)
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Genus
Lei Aves Genus
MCZ resource Genus
NCBI Taxonomy
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Genus
NatureServe resource Genus
Nomenclator Zoologicus
  • Branta Scopoli 1769
OBIS Environmental Information
  • Branta
OBIS depth range resource Genus
One-time import of archived NBII images Genus
Paleobiology Database
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Genus
Monthly ARKive text import Genus
Taxonomic Hierarchy of COL-China 2012
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Genus
World Register of Marine Species (WoRMS)
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Genus
Wikimedia Commons
Wikimedia Commons Genus
Wikipedia Genus
Wikipedia
Wikipedia Genus
iNaturalist Images Genus
xeno-canto Bird Sounds Genus

Disclaimer

EOL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing.

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