Bird Anatomy
These parts of a feather "zip up" to create a vane and keep the feather smooth and functional
Birds do this action to smooth and care for their feathers
What is preen
A bird's heart has this many chambers
What is 2
This type of flight allows a bird to coast "downhill"
What is gliding
This is the process of bird feathers falling out to be replaced with new ones
What is molting
"Plumage" is another word for this
What are feathers
A bird with feet that exhibits webbing between the toes is designed for this
What is swimming
What type of bird foot has 3 forward facing toes and 1 hind toe?
What is perching (bird)
A bird's specialized breastbone, designed for flight, is called this
What is a keel
The act of keeping eggs warm so a chick can develop inside is called
What is incubation
A bird's bill is made of this substance
What is keratin
Vision that allows a bird to see on all sides is called _____ vision.
What is monocular (vision)
This organ allows a bird to produce tweets/sounds
What is the syrinx
Stationary flight is called
What is hovering
In what region of the egg do chick embryos develop?
What is the germinal spot
The food-storage sax in a bird's esophagus is called this
What is a crop
Birds knowledge of how to escape danger or build a nest is called this
What is instinct
The strong feathers on a bird's body, wings, and tail are called _____ feathers.
What are contour (feathers)
This type of flight involves using a thermal to gain altitude
What is soaring
This is the largest flying bird
What is the Andean condor
1) Muscles instead of diaphragm used to bring air into lungs
2) Bird lungs have capillaries that allow air to flow straight through instead of dead-end alveoli. This allows steadier O2 supply for birds (air goes THROUGH lungs, not in and out).
3) Birds inhale/exhale x2 to move each breath through resp system (to extract max amt of O2).
4) Birds have air sacs that store air and air tubes that extend to the bones (unlike mammals). Help cool body/absorb heat.
A baby bird that hatches without feathers and with its eyes closed is said to be this type of chick
What is altricial
This part of a bird helps them transfer body heat to their egg while incubating it
What is a brood patch
The main flight muscles on a bird are located here ________ and are called _________
What are breast & pectoral muscles
This is the group of birds that does not provide parental care for their young after hatching
What is megapodes