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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
