1. Class Aves

2. Class Aves Feathers No teeth Flexible long neck Scales on legs
One occipital condyle
Scales on legs
Bones with air spaces
Endothermic
Four chambered heart

3. Adaptations for Flight
Honey combed bones
Air cavities
Less weight

4. Light Weight Skeleton
Frigate bird
7 foot wing span
4 ounce skeleton

5. Adaptations for Flight
Enlarged sternum
Flight muscle attachment
Long neck
balance

6. Adaptations for Flight
Wing
lift

7. Adaptations for Flight
Feathers
Light weight
Strong

9. Adaptations for Flight
Reduce body weight
No teeth
No urinary bladder

10. Migration Sissor-tailed flycatchar
Migates to Central and South America in October
Returns in April

11. Migration
Arctic tern
Migrates 25,000 miles!

13. Beak Adaptations
Ripping flesh

14. Beak Adaptations
Eating seeds

15. Beak Adaptations
Sucking nectar from flowers

16. Beak Adaptations
Drilling wood

17. Beak Adaptations
Catching fish

18. Beak Adaptations
Basket-like bill to hold fish caught under water

19. Beak Adaptations
Filtering

22. Digestive System Crop Proventriculus Gizzard Cloaca Storage Enzymes
Grind food
Cloaca
Waste
Reproduction

23. Vision Up to 8 times keener than human vision
Each eye moves indendtantly

24. Respiratory System Nine air sacs Fresh air always moving
Connect to lungs and centers of bones
Cools the bird
Fresh air always moving
No dead ends as in mammals
Each wing beat moves air
Never run out of air

25. Benefits of Birds to Man
Eat insects, rodents and weeds
Spread seeds for flowers and trees
Food
Sport
Pets

26. Fastest Animal
Peregrine falcon
Strikes prey at 180 mph

27. Elephant Bird Eleven feet tall 1100 pounds Largest egg ever
Extinct in late 1600’s

28. Hummingbirds Fly up, down, left, right, backwards and upside down
Wings beat times per second
Heart rate =600 bpm
Eat 2/3 body weight each day
Nectar, pollen & insects

30. Sexual Selection

31. Bird Classification
28 orders
9600 species

32. Order Ciconiiformes
Long legs for wading
Long necks

33. Order Anseriformes
Flat bill
Webbed feet

34. Order Falconiformes
Hooked bill
Talons
Eagle
Hawk
Falcon

35. Order Passeriformes Perching foot Songbirds 5000 species Mocking bird
Thrushes
Swallows
Magpie
Crow
Starling
Jays

36. Order Columbiformes
Short neck
Short legs
Pigeons
Doves

37. Order Strigiformes
Large eyes
Silent flight
Nocturnal predator
Owls

38. Order Apodiformes
Small bird
Rapid wingbeat
Hummingbirds

39. Order Galliformes Chicken like Strong beaks Heavy feet Chicken Turkey
Pheasants
Quail

40. Order Charadriiformes
Short bill
Strong fliers
Shorebirds
Gulls

41. Order Psittaciformes Thick tongue Hinged and movable upper beak
Bright colors
Parrots
Parakeets

42. Order Piciformes
Two toes forward and two toes backward
woodpeckers

43. Order Sphenisciformes
Webbed feet
Wings as used for swimming
penquins

44. Bird Information

45. Characteristics They are well adapted to aerial life.
The body is streamlined , spindle shape and light due to hollow bone.
The body is covered with feathers exoskeleton.
The forelimb is modified into wings.
The external part of mouth is developed into beak.
These are warm blooded animals.
They are unisexual , oviparous animals that hatch the eggs.
Respiration through lungs.
Heart has four chambered.
Eg. Parrot , Owl , Kite etc.

46. Represented by: Shri. Bangar. N. K. B. Sc. B
Represented by: Shri.Bangar.N.K. B.Sc.B.Ed Mahatma Gandhi Vidyalaya,Manchar