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Marine Birds

Marine Birds. All Seabirds are Endotherms (warm-blooded). They have light hollow bones, and make up 3% of all birds. Can be found from pole to pole. The major groups of Seabirds include: Penguins Tubenoses Pelicans Gulls Shorebirds. Penguins: 17 species found in southern hemisphere

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Marine Birds

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  1. Marine Birds

  2. All Seabirds are Endotherms (warm-blooded). They have light hollow bones, and make up 3% of all birds. Can be found from pole to pole. • The major groups of Seabirds include: • Penguins • Tubenoses • Pelicans • Gulls • Shorebirds

  3. Penguins: • 17 species found in southern hemisphere • Spends 75% of lifetime in water

  4. Penguin Adaptations: • Heavy, solid bones for diving • Watertight feathers (up to 70 per sq. in.) • Blubber for insulation • Oil gland for coating feathers • Black & white counter shading • Deep divers • - 500 m, 15 min. • Paddle-like feet • Streamline, fusiform body • - 15 mph • Social

  5. Nesting

  6. Nests on pack ice

  7. Tubenoses • Have tube-like nostrils at the end of their beaks • Spend months at sea feeding on fish • Include Albatross and other long range fliers.

  8. Salt Excretion in Birds

  9. Pelicans • Have pouch like beaks • Related to Cormorants and Frigate birds

  10. Gulls and their relatives • Mostly predators and scavengers • Hang out at dumps • Related to Puffins

  11. Shorebirds • Lack webbing in their feet • Don’t swim much • Pick through mud or sand • Include sandpipers, herons, egrets

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