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Birds or also known as AVES is a type of endothermic vertebrates that have feathers, toothless beak and laying hard-shelled eggs. They are tetrapods which have high metabolic rates and strong lightweight bones. They are a part of chordata which is animals that have backbones.

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1st Features of birds (aves)

· Feathers- provide insulation for heat, enable for flight, allowing for thrust and lift to become airborne. Two parts of the feathers is primary feathers and secondary feathers. The penguins rely on their metabolism and fats for heat.

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·       Wings- all birds have wing but some such as penguin and ostrich cannot fly

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·       Beak or Bills- most species would have tomia (small teeth along the beaks), the shape of the beaks indicates the bird’s diet

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· the skeleton of birds are hollow and lightweight except flightless birds light penguin and ostrich which have marrow and solid bones. The hollow bones are fused to make extra support.

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·       Lay eggs- egg mostly are coloured or covered with spots, the eggshell made up from mostly calcium and hardened mucus

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Bird flight is one of the most remarkable phenomena in the animal kingdom. These animations show how main physical forces such as thrust, lift, and gravity affect bird flight. For more information jump over to Ask A Biologist - https://askabiologist.asu.edu/how-do-birds-fly Bird Flight Animations by the Canadian Museum of Nature (nature.ca).

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COMMON NAME: | bald eagle
KINGDOM: | Animalia
PHYLUM: | Chordata
CLASS: | Aves
ORDER: | Falconiformes
FAMILY: | Accipitridae
GENUS SPECIES: | Haliaeetus (sea eagle) leucocephalus (white head)