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| Auk |
| Alcidae is a family of highly specialized SEABIRDS that contains auks (including the now extinct GREAT AUK), auklets, MURRES, murrelets, RAZORBILLS, dovekies, guillemots and PUFFINS. Alcids are diving birds... |
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| Avocet |
| The avocet (order Charadriiformes, family Recurvirostridae) is a large, long-legged shorebird about 50 cm long with striking white and black plumage. The 4 species of avocets (one in each of North and South... |
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| Bird |
| A bird is a member of a unique group of VERTEBRATES, Class Aves. The FOSSIL record, comparative anatomy and embryology indicate that birds have a common ancestry with REPTILES and DINOSAURS. Palaeontologists... |
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| Bird Classification and Evolution |
| Birds belong to VERTEBRATES, the group of animals with a vertebral column. More precisely, BIRDS belong to the Tetrapods, the four-limbed vertebrates, which also include amphibians, mammals and all reptiles.... |
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| Robin, American |
| The American robin (Turdus migratorius) is the largest and best-known member of the THRUSH family in Canada. The term robin also applies to several other thrushes not closely related to the American robin and to... |
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