Apologia Science Zoology 1, Lesson 3

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hatchling

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

semiplumes

Feathers that fill the space between contour feathers and the next layer of feathers, called down. Semiplumes have large shafts with downy barbs

filoplumes

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.

bristles

"Eyelash-like" feathers that help sense very light touches.

molting

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.

shaft

the hollow shaft of a feather

keratin

a hard protein that forms hair, bird feathers, nails, and horns

quill

a stiff, sharp hair or spine like the pointed end of a feather

vane

the flattened web-like part of a feather consisting of a series of barbs on either side of the shaft

barbs

branches of a contour feather, they each have hooks that link the barbs together & create a continuous surface and a sturdy shape

barbules

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

preening

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

remiges

flight feathers of wings, Flight feathers on the wing.

retrices

Flight feathers on the tail.

coverts

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

waterfowl

Water birds, especially those that swim, such as ducks or geese.

cormorant

a large diving bird with webbed feet, a hooked beak, and a long neck that can expand to swallow fish. Native to: coastal waters

melanins

Brown and black pigments.

carotenoids

pigments commonly found in plants and animals, some of which have vitamin A activity; Produce reds, oranges, pinks, and yellows seen in some birds.

porphyrins

Red and green pigments that birds make themselves.

iridescent

varying in color when seen in different lights or from different angles

anting

When a bird rubs ants on them so the ant will release formic acid, a chemical that mites and lice don't like.

pigments

chemicals that produce color

Flickr Creative Commons Images

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