Light, Toothless beak - PowerPoint PPT Presentation

JasminFlorian
light toothless beak n.
Skip this Video
Loading SlideShow in 5 Seconds..
Light, Toothless beak PowerPoint Presentation
Download Presentation
Light, Toothless beak

play fullscreen
1 / 17
Download Presentation
Light, Toothless beak
682 Views
Download Presentation

Light, Toothless beak

- - - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

  1. Light, Toothless beak Center of gravity Gizzard instead of teeth Large “keeled” sternum Tail bones lost/fused Into pygostyle

  2. Powering flight

  3. Static soaring

  4. Light or dark meat? It’s all about flight physiology!

  5. Powering flight muscles

  6. So unidirectional flow What’s the advantage??

  7. Coordinating flight Cerebellum Bird Brain

  8. Secondary cavity nesters Primary cavity nesters

  9. Altricial Precocial Sex determined by sex chromosomes, not temperature

  10. Attracting a mate

  11. Song from Syrinx “double flute”

  12. Migration Shearwater 40,000 miles/year

  13. Blackpoll Warbler 15 g ----2 for one stamp 80-90 hours nonstop Migrate Canada to South America Neotropical migrant Red + yellow =12000 miles If they were burning gasoline instead of fat, they'd be getting about 720,000 miles to the gallon