Ch 8 Flashcards
A hummingbird remaining stationary in the air is engaging in this
Hovering
This is the nutrient rich fluid that feeds an unhatched chick
Yolk
This is the region of an egg where the embryo develops
The germinal spot
Using thermals to gain altitude without expending energy is called this
Soaring
The outermost shell of an egg is made of this
Calcium carbonate
Whippoorwills which catch insects in-flight have this type of bill
Gaping
To love chicks to develop properly, eggs must be kept warm through this
Incubation
This type of flight allowed birds to “coast” downhill
Gliding
Songbirds, with their three forward toes in one Hines tell, have this type of feet
Perching
Colors, patterns, and markings that are characteristic of a specific bird species are known as this
Field marks
These type of chicks are featherless and helpless when they hatch
Altricial
This group of birds does not provide any parental care for their young
Megapodes
This is the fastest flying bird
Peregrine falcon
Birds that sit on their eggs lose feathers from this to transfer heat to their eggs more effectively
Their brood patch
Six categories of birds used by birdwatchers
Perching birds birds of prey water birds game birds flightless birds tropical bird
Six characteristics common to all members of class Aves both living and extinct
Bipedal warm-blooded vertebrates feathers scaly legs wings
This produces oil that bird spread over their feathers
The preen gland
Strong feathers found on the birds body, wings, and tail
Contour feathers
A retractable group of feathers supported by a bird’s “thumb” bone
Alula
A ridge on the sternum
Keel
This produces sound without vocal chords
Syrinx
Feathers extending from a birds “hand” to the tip of its wings
Primary flight feathers
Used to raise the wings
Pectoralis minor
The wing bone to which the major flight muscles connect
The humerus
A food storage sack in a bird’s esophagus
Crop
Soft, fluffy feathers found close to a bird body
Down feathers
This is used to grind food and make it more easily absorbed
The gizzard
Many birds have this type of vision which allows each of their eyes to see a different portion of the world around them
Monocular
Migration routes followed year after year are known as this
Flyways
Birds are born with a built in knowledge called this
Instinct
Birds perform this migration when they migrate relatively short distances by moving up and down a mountain
Altitudinal
In an activity called this, smaller birds will harass a larger bird
Mobbing
Many birds practice this, a type of bathing that does not use water
Dusting
Birds use ants to clean their plumage in an activity called this
A ting
Label bees parts of the feather
Shaft
barbule
barb
vane
Compare and contrast the birds respiratory system to that of a mammal
A birds respiratory system pumps air into the lungs using expansion and contraction of the thoracic cavity by the chest muscles rather than using a diaphragm as mammal do. This allows birds to breathe more vigorously during flight when they need the most oxygen. A bird’s lungs have air capillaries that allow air to flow straight through unlike mammalian lungs which have dead end alveoli. Air travels to the lungs rather than in and out of them. Birds have air sacs for storage, unlike mammals. Air tubes connect the air sacs to the hollow these type of chicks are featherless and helpless when they hatcavities of the bones. A bird inhales and exhales twice to move each breath through the respiratory system, unlike a mammal which inhales and exhales once for each breath.
Feathers and bills are both made of this substance
Keratin
