Class Aves

1. Class Aves: Birds

2. Characteristics Feathers Wings Beak/Bill Oviparous Lightweight skeleton Molting Penelopedis panini

3. Feathers Made of keratin Plumage- covering of feathers on a bird

4. Function Form flight surfaces that provide lift and aid steering Prevent excessive heat loss Incubation Courtship Water proofing

5. Types of Feathers Pennaceous Feathers Plumulaceous Feathers

6. Pennaceous Feathers Flattened, tightly closed feathers that create aerodynamics surfaces such as those of wings and tails

7. Plumulaceous Feathers Rudimentary shaft to which a wispy tuft of barbs and barbules is attached.

8. Skeleton

9. Muscle Strongest muscle of most birds are the flight muscles, it has a lot of mitochondria.

10. Flight

11. Digestion

12. Sight

13. Reproduction Monogamous Polygamous

14. Nesting Activities Clutch-group of eggs and chicks produced by a female. Altricial -birds that are entirely dependent on their parents upon hatching. Precocial -alert and lively at hatching.