"Up
Close: Bald Eagle"
Name
________________________________________1. Birds Share Several Key ______________________.
List 4 of them.
_______________________________________________________________
_______________________________________________________________
2. Feathers are modified reptilian ___________ and develop from tiny pits called
____________________.
3. Match the feather to its description.
|
____ down feathers ____ flight feathers ____ countour feathers |
a. covers the body and gives the bird shape b. provides insulation c. specialized countour feathers found on the wings and tail |
4. Why does a bird put oil on its
feathers?
_______________________________________________________________
5. What is preening?
_______________________________________________________________
_______________________________________________________________
6. Name two structures on the bird skeleton that no other living vertebrate
has.
_____________________________________________________________________
7. What purpose does the large keeled breastbone serve? (fig 35-15)
_____________________________________________________________________
8. What is an endotherm?
______________________________________________________________
9. In the avian heart, oxygen poor blood from the body enters the ________________,
from there it travels to the _______________________ and then goes to the _________________
(See fig 35-16)
10. Why do birds have a much higher demand for energy than other animals?
______________________________________________________________
11. How far can migrating birds fly? _________________________
12. Use the picture of the Avian Lung Structure (fig 35-18) to answer true or false to the following statements.
______ During inhalation, fresh air
is pulled into the anterior air sacs.
______ Fresh air enters the lungs through the trachea
______ During exhalation, fresh air from the posterior air sacs enters the lungs.
______ During exhalation, fresh air from the anterior air sacs enters the lungs.
"Up
Close: Bald Eagle"
13. What is the most important sense
in the bald eagle? _____________
14. What do bald eagles eat? __________________________
15. What does the eagle use its curved beak for? ___________________
16. What is the function of the cerebrum? ____________________________
17. What substances exit the cloaca? _______________________________
18. What is the function of the crop? ________________________________
19. What is the function of the gizzard? ______________________________
20. Birds are Adapted for Different
Ways of ___________
21. _______ % of all birds belong to the Passeriformes group, also known as
_________________.
22. Describe the beaks of carnivorous birds.
______________________________________________________________
23. Describe the feet of songbirds. What are they adapted for?
______________________________________________________________
24. What are long legs, like those on a heron, adapted for?
______________________________________________________________
25. Songbirds have two different types of beaks, describe the beaks and the
diet each is adapted for.
______________________________________________________________
______________________________________________________________
______________________________________________________________