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

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Presentation transcript:

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

Powering flight

Static soaring

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

Powering flight muscles

So unidirectional flow What’s the advantage??

Cerebellum Bird Brain Coordinating flight

Primary cavity nesters Secondary cavity nesters

Altricial Precocial Sex determined by sex chromosomes, not temperature

Attracting a mate

Song from Syrinx “double flute”

Migration Shearwater 40,000 miles/year

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

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