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100

What is the evolutionary line that includes modern birds?

Ornithurae

100

first bird fossil discovered

Archaeopteryx

100

What type of feathers are found on the body and help reduce drag during flight?

Contour feathers

100
Allows for greater chance of flight in birds
What is a keel sternum (large pectoralis)
100
All birds lay eggs
What is True
200
Purpose of hindlimbs
What is walking, swimming, and perching
200
Displayed a link between birds and reptiles based on what 4 characteristics
What is long bony tail, clawed fingers, abdominal ribs, feathers
200

Which feathers are located at the tip of the wing and provide thrust?

Primary feathers

200
Name for the group of flightless birds
What is Ratite
200
More than one mate
What is polygany
300

Type of bones found in birds

What is hollow and light; pneumatic bones

300

Birds closest living relative

Reptiles
300
Avantages of migrating in groups
What is protection, mate finding, migration direction finding, warmth
300
three benefits of flight
What is escape from predators, reproduction, and food
300

What bird uses dancing as a love language?

Blue-footed Boobie

400

What is the term for birds that mate with more than one female?

Polygynous

400

What is the name of the structure that allows birds to reabsorb water from waste?

Cloaca

400
Moves the bird forward against resistive forces of friction during migration
What is Thrusting Force
400

What is the term for birds that are active and able to move freely from birth or hatching?

precocial

400
birds born naked & helpless at birth stay in the nest for 1 or more weeks are termed
What is Altricial
500

This system is highly efficient for metabolic demands of flight & thermoregulation

What is respiratory system

500

Which group of flightless birds includes ostriches, emus, rheas, and kiwis?

Paleognathae

500

What is the term for the forked bone formed by the fusion of the clavicles in birds?

furcula or wishbone

500

Which birds specialize in opening mussels and other bivalve mollusks?

Oystercatcher

500

From which subgroup of dinosaurs did modern birds evolve?

Saurischia