Birds

Aves

Birds belong to what biological class

Nape

Back of the beck

Beak

Birds bill

Endothermy

Ability to use metabolism to maintain a constant body temperature

Talons

Claws at the end of each toe

Yolk

Contains the food and where the embryo develops

Chalaza

rope-like strand that anchors the yolk

Crown

The top of the birds head

Blastodise

Small, circular disc where sperm enters the egg

Albumin

Egg white

Aircell

Empty space at the large end of an egg

Auriculars

Feathers covering the birds ear openings

Tail feathers

Feathers used for steering

Shell

Hard, protective cap ting of the egg

Shell

Made of calcium carbonate and allows gas exchange

Primaries

Main flight feathers

Vitelline

Membrane surrounding the yolk

Wing coverts

Small feathers that cover the base of the wing

Control of insects spreading seeds pollinators of plants

Three reasons why birds are important

1. Flying. 2. Thermal insulation. 3. Courtship and mating

Three uses of feathers

Syrinx

Vocal organ used to sing located in the throat

Feathers

What are highly modified scales

Keen eyesight

What do birds use to find food?

Peregrine falcon

What is the fastest bird and has been clocked at 90 MPH