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7 Science Test 7 Ch

altitudinal type of migration birds perform when they migrate fairly short distances by moving up and down a mountain
altricial type of chicks are featherless and helpless when they hatch
alula retractable group of feathers supported by a bird's "thumb" bone
anting when birds use ants to clean their plumage
brood patch area birds lose their feathers from for more effective heat transfer
calcium carbonate what the outer shell of an egg is made of
contour strong feathers found on a bird's body, wings, and tail
crop food storage sac in a bird's esophagus
down soft, fluffy feathers found close to a bird's body
dusting type of bathing that does not use water
field marks colors, patterns, and markings that are characteristic of a specific bird species
flyways migration routes followed year afteryear
gaping type of bill used to catch insects in flight
germinal spot region of an egg where the embryo develops
gizzard used to grind food and make it more easily absorbed
gliding type of flight allows birds to coast "downhill"
hovering remaining stationary in air
humerus wing bone to which the major flight muscles connect
incubation keeping eggs warm for proper chick development
instinct built-in knowledge birds are born with
keel ridge on the sternum
keratin substance feather and bills are made of
megapodes group of birds that does not provide any parental care for their young
mobbing event when smaller birds harass a larger bird
monocular vision that allows a bird's eye to see a different portion of the world
pectoralis minor used to raise the wings
perching bird feet with 3 forward toes & 1 hind toe
peregrine falcon fastest flying bird
preen gland produces oil that birds spread over their feathers
primary flight feathers extending from a bird's "hand" to the tip of its wing
soaring using thermals to gain altitude without expending energy
syrinx produces sound without vocal cords
yolk nutrient-rich fluid that feeds an unhatched chick
Created by: Mrs_CC