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