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Virtual Bird Field Guide of Birds - by Scientific Name
- English
URL: http://birding.about.com/library/fg/bl-fg-n-sci.htm
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Virtual Bird Field Guide of Birds - by Family
- English
URL: http://birding.about.com/library/fg/bl-fg-n-order.htm
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Class Aves
- English
URL: http://animaldiversity.ummz.umich.edu/chordata/aves.html
Birds are vertebrates with feathers, modified for flight and for active metabolism. Birds are a monophyletic lineage, evolved once from a common ancestor, and all birds are related through that common origin. [ eng ] |

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Handbook of the Birds of the World
- English
URL: http://www.hbw.com/
HBW is the first work ever to illustrate and deal in detail with all the species of birds in the world. Volumes 1, 2, 3, 4 and 5 have already been published and Volume 6 is to appear in January 2001. [ eng ] |

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Animal Kingdom: Birds: Classification of Birds
- English
URL: http://www.swishweb.com/Animal_Kingdom/Birds/animal02b.htm
Listing of birds, broken down by order, with common names, distribution and characteristics. [ eng ] |

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Neornithes
- English
URL: http://phylogeny.arizona.edu/tree/eukaryotes/animals/chordata/dinosauria/aves/ne
Modern Birds. Summary phylogenetic hypothesis for extant avian orders modified from Cracraft (1988), Sibley and Ahlquist (1990) and Mindell et al. (1997). [ eng ] |

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Southeastern bird taxonomy
- English
URL: http://museum.nhm.uga.edu/birdphotos/birdtax.html
The images at this site are now divide systematically instead of alphabetically. You can still move from one page to the next, the images just appear in a different order. If you know what you are looking for you can jump to either the beginning of that group from the list below, or by using the alphabetical list in the index. [ eng ] |

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