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Pelicaniformes: Birds

Anhingas and Darters (Anhingidae)
Boobies and Gannets (Sulidae)
Cormorants (Phalacrocoracidae)
Frigatebirds (Fregatidae)
Pelicans (Pelecanidae)
Tropicbirds (Phaethontidae)

• Order Pelecaniformes (University of Michigan) - Text and Images.
• Ruderfüßler (Pelecaniformes) - Merkmale, Systematik.