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Out- What are the advantages
and or disadvantages of being
ENDOTHERMIC?
Out- What advantage does having
air sacs have for birds?
OUT- Why is the ability to adapt
important?
 OUT-
What is preening and why
do birds preen?
1.
Characteristics
of Birds
2.
3.
1.
Characteristics
of Birds
2.
Lay Amniotic Eggs- w/ hard shells
Have Wings; most birds fly
3. Are the only animals with feathers
Adaptations For Flight
Adaptations
Skeleton
Contour Feathers
Wings
Description
Adaptations For Flight
Adaptations
Skeleton
Contour
Feathers
Wings
Description
Bones are almost hollow
Bone are joined together to make them stronger
Large breast bone supports chest muscles
Adaptations For Flight
Adaptations
Description
Skeleton
Bones are almost hollow
Bone are joined together to make them
stronger
Large breast bone supports chest muscles
Contour Feathers
Strong lightweight
Give bird their shape
Tail feathers help steer, balance, landing
Wings
Adaptations For Flight
Adaptations
Description
Skeleton
Bones are almost hollow
Bone are joined together to make them stronger
Large breast bone supports chest muscles
Contour Feathers
Strong lightweight
Give bird their shape
Tail feathers help steer, balance, landing
Wings
Attached to strong chest muscles
Curved on top, flat on bottom to create lift
When flapped, provide power to go forward and to
stay in the air
Food is taken into the
__________
Enters _______________
unchewed,
Moves to __________;
where it is
_________________ digested
Moves to ____________,
where it is
__________________
Travels through _____________, where
nutrients
_________________________________________.
Respiratory System
Circulatory System
Respiratory
System



Inhaled air passes
into air sacs
When a bird exhales,
air passes from air
sacs to lungs
Air enters lungs
when both inhaling
and exhaling
Circulatory
System

Heart is large
compared to body

Heart beats rapidly

Blood carrying
oxygen is kept
separate from blood
carrying carbon
dioxide


A bird’s adaptation to his environment and
his food is shown most obviously in his beak
and feet. Describe and explain these two
previous adaptations that are most
commonly seen in one of the following birds.
(you may draw these parts to help in your
explanation, but don’t forget to explain their
use)
Field
Guides

http://biologycorne
r.com/worksheets/
owlpellet.html