Template:Birds
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| Anatomy: Anatomy - Skeleton - Flight - Eggs - Feathers - Plumage |
| Evolution and extinction: Evolution - Archaeopteryx - Enantiornithes - Hybridisation - Late Quaternary prehistoric birds - Fossils - Taxonomy - Extinction |
| Behaviour: Singing - Intelligence - Migration - Reproduction - Incubation - Brood parasites |
| Bird Orders: Struthioniformes - Tinamiformes - Anseriformes - Galliformes - Gaviiformes - Podicipediformes - Procellariiformes - Sphenisciformes - Pelecaniformes - Ciconiiformes - Phoenicopteriformes - Falconiformes - Gruiformes - Charadriiformes - Pteroclidiformes - Columbiformes - Psittaciformes - Cuculiformes - Strigiformes - Caprimulgiformes - Apodiformes - Coraciiformes - Piciformes - Trogoniformes - Coliiformes - Passeriformes |
| Bird lists: Familes and orders - Lists by region |
| Birds and Humans: Ringing - Ornithology - Birdwatching - Bird feeding - Conservation - Aviculture |