soft fluffy feathers near a bird's body
down feathers

fastest bird
peregrine falcon


most of these do not have a keel
bONuS boNUS boNUS (300 points)
:Which type of these birds DOES have a keel?
flightless birds; penguin

built-in knowledge
instinct
bird's most important flight muscles
pectorals

a bird's bill is made of
keratin

bird feet with one toe pointed backwards and three toes going forward connected by webbing
swimming feet

largest living bird
ostrich
includes ostriches and emus
flightless birds

migration routes birds follow year after year
flyways

type of flight where a bird coasts "downhill"
gliding flight

plumage
feathers

nutrient-rich fluid that feeds and unhatched chick
yolk
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type of foot with three forward toes and one hind toe
perching foot

includes eagles and hawks
birds of prey
a bird with binocular vision would most likely be a bird of prey, and would therefore most likely eat:
a. insects
b. nuts
c. fruits
d. other birds
other birds

number of membranes that a bird egg has
two

type of flight where a bird remains stationary in the air
hovering
structure on a bird's sternum that provides an attachment for the flight muscles
keel
substance that makes up the shell membrane of a bird egg
keratin

type of feet for hunting birds to capture their prey
grasping feet


smallest known bird
bee hummingbird

type of bird known for climbing down a tree trunk head first
nuthatch

birds born with down feathers and able to run shortly after hatching
precocial

when a flock of smaller birds harasses a larger bird
mobbing

a bird's heart has this many chambers
four

type of bill that has hinged jaws that allow the bill to open widely
gaping bill
?????

what group of birds does not provide any parental care for their young after hatching?
megapodes
includes many edible birds that are or have been hunted
game birds
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birds born without feathers and their eyes closed
altricial

the act of keeping eggs warm
incubation
dusting

section of a bird's stomach that grinds food
gizzard
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what organ produces oil that birds spread over their feathers?
preen gland

strong feathers on body, wings, and tail
contour feathers
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includes chicken and quail
game birds
colors, patterns, and markings that identify particular bird species
field marks

the outermost layer of an egg shell is made of
calcium carbonate

removing feathers to make room for new ones
molting

food-storage sac in the esophagus
crop

long, slender bills for retrieving things like crustaceans from the sand
probing bills
largest flying bird
Andean condor

includes pelicans and grebes
water birds

type of vision that is able to detect danger from all sides
monocular vision

region of an egg where an embryo develops
germinal spot

flight where something circles inside a thermal to gain altitude
soaring
allows a bird to produce sound without vocal cords
syrinx

how are the toes on a climbing foot arranged?
two forward, two backwards

bird that builds a huge "nest" decorated with shiny stuff
bowerbird
includes macaws and parakeets
tropical birds

why specifically do birds lose feathers on their brood patch?
to transfer their body heat to their eggs

two twisted cords holding the yolk body in place
chalazae

migrating short distances up or down a mountain
altitudinal migration

retractable group of feathers supported by a bird's "thumb" bone
alula
