VocabularyUnit 2

Week 7

Flap: To move the wings up and down as if to fly.

Rookery: A collection of nests.

Breeding: Production of offspring by animals.

Waddle: To walk with a clumsy motion.

Jagged: Having sharp pointed rocks.

Instinct: A fixed pattern of behaviors in animals.

Blubber: A layer of fat in sea animals.

Frigid: Really, really cold.

Exposure: Being at a temperature that is less than normal.

Preen: To clean feathers with a beak.

Steady: Not shaking or moving.

Crevices: Deep narrow openings in the ice.