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.

Preferred marks the preferred classification for this taxon.

Recognized By Rank Classification
Species 2000 & ITIS Catalogue of Life: April 2013
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Species
IUCN Red List
AnAge database
Anage Data
BHL: BioDivLibrary's photostream
BHL: BioDivLibrary's photostream
  • Circus aeruginosus
BOLDS images II Species
BOLDS resource for species-level taxa
BibAlex LifeDesk
  • Circus aeruginosus (Linnaeus, 1758)
Biopix
Bird Life History Species
Birdlife International links resource
Clements Checklist resource
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Species
DiscoverLife map resource
  • Circus aeruginosus
Dutch Marine and Coastal Species Encyclopedia
  • Circus aeruginosus
EOL Group on Flickr
EOL Group on Flickr
EOL Group on Flickr
Environments
GBIF Elevation Data Species
Genome 10K Project Vertebrates
  • Circus aeruginosus
Global Biotic Interactions Species
Monthly ARKive text import
IUCN Red List
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BioLib.cz Import
Integrated Taxonomic Information System (ITIS)
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Species
Inventaire National du Patrimoine Naturel Species
Taxonomic Hierarchy of COL-China 2012 Lei Aves
NCBI Taxonomy
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Species
OBIS Environmental Information
  • Circus aeruginosus Linnaeus
OBIS depth range resource
Phthiraptera Species
Phthiraptera Species
PlanetScott.com images
  • Circus aeruginosus
South African Vertebrates
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Species
India Biodiversity Portal Species Data Species
IUCN Structured Data
TaxonConcept.org outlinks
  • Circus aeruginosus
Taxonomic Hierarchy of COL-China 2012
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Species
Vogels van het Dijleland (ruw)
  • Circus aeruginosus
Wikimedia Commons
Wikipedia
iNaturalist Images Species
iSpot links Species
  • Circus aeruginosus
xeno-canto Bird Sounds Species

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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