Annually moving to a different region

A large group of birds, usually of the same kind

The development spot for food for an embryo

A twisted cord in an egg that supports the yolk

An unlearned knowledge that an animal possesses from birth

The protection of eggs and the act of keeping them warm

A patch of bare skin on a bird used to heat up eggs

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BirdLife

Chapter 17.2 of Biology: God's Living Creation

Question	Answer
Migration	Annually moving to a different region
Flock	A large group of birds, usually of the same kind
Albumen	Egg white
Germinal Spot	The development spot for food for an embryo
Chalaza	A twisted cord in an egg that supports the yolk
Instinct	An unlearned knowledge that an animal possesses from birth
Ethology	The study of animal instincts
Incubation	The protection of eggs and the act of keeping them warm
Brood Patch	A patch of bare skin on a bird used to heat up eggs
Altricial	Helpless at hatching
Precocial	Covered with down