How can we help?

You can also find more resources in our Help Center.

29 terms

Apologia Science Zoology 1, Lesson 3

any recently hatched animal (especially birds)
contour feathers
large feathers that give shape to a bird's body and help with flying
down feathers
A short, fluffy feather that traps heat and keeps a bird warm
Feathers that fill the space between contour feathers and the next layer of feathers, called down. Semiplumes have large shafts with downy barbs
fine, hair-like feathers with a few short barbs or barbules at the tip. They are sensory structure that aid in operation of other feathers.
"Eyelash-like" feathers that help sense very light touches.
the shedding of an exoskeleton, skin, feathers, or hair to be replaced by new parts
Bird's molt sequence
The order in which a bird loses its feathers.
the hollow shaft of a feather
a hard protein that forms hair, bird feathers, nails, and horns
a stiff, sharp hair or spine like the pointed end of a feather
the flattened web-like part of a feather consisting of a series of barbs on either side of the shaft
branches of a contour feather, they each have hooks that link the barbs together & create a continuous surface and a sturdy shape
the threadlike parts fringing each side of the barb of a feather; like miniscule barbs coming off of the actual barbs; give structural integrity to flexible flight feathers
process in which birds rub oil from oil glands over it's feathers to condition and waterproof them
flight feathers
specialized contour feathers found on a birds wing and tail. Help provide lift for flight
flight feathers of wings, Flight feathers on the wing.
Flight feathers on the tail.
These contour feathers are not used for flight, they cover the bases of the flight feathers.
powder down feather
a feather even smaller than down, which disentegrates into powder at the tip, thought to be used to catch and dispose of slime, blood, water, etc
preen gland
in birds, a special gland that secretes oil that birds spread over their feathers to clean and waterproof them
Water birds, especially those that swim, such as ducks or geese.
a large diving bird with webbed feet, a hooked beak, and a long neck that can expand to swallow fish. Native to: coastal waters
Brown and black pigments.
pigments commonly found in plants and animals, some of which have vitamin A activity; Produce reds, oranges, pinks, and yellows seen in some birds.
Red and green pigments that birds make themselves.
varying in color when seen in different lights or from different angles
When a bird rubs ants on them so the ant will release formic acid, a chemical that mites and lice don't like.
chemicals that produce color

Flickr Creative Commons Images

Some images used in this set are licensed under the Creative Commons through
Click to see the original works with their full license.