Eat like a bird? Fly like a bird? Sing like a bird?

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Characteristics of Reptiles

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Presentation transcript:

Eat like a bird? Fly like a bird? Sing like a bird?

Bird Characteristics Most closely resemble the reptiles (scaly feet) Feathers better advantage than skin for wings Can be replaced Amniotic eggs Large Pectoral/Breast muscles (30% of weight) Flight skeleton Thin and hollow Fused bones (hand of humans/collarbones) Keelbone

Bird Characteristics cont. Beak structure indicitive of food source (lack teeth) Crop and Gizzard Very efficient respiration Efficient circulation (4 chambered heart) Feed young crop milk

EXTERNAL NARES CERE NICTITATING MEMBRANE TYMPANIC MEMBRANE inside head SCALY SKIN on feet CLAWS

EYES BIG for size of head See in COLOR Kestral Image from: http://www.biology.eku.edu/RITCHISO/birdbrain2.html EYES BIG for size of head See in COLOR Eyes on front of face- gives depth perception Seen in predators Eyes on sides of head- Gives wide range of vision Seen in prey

Bird Lung/Respiration