A) The process of birds building nests.
B) The behavior of birds eating specific diets.
C) The seasonal movement of birds from one place to another.
D) The process of birds changing their appearance.

A) To refuel and rest during their long journeys.
B) To establish territories.
C) To hide from predators.
D) To find new mates.

A) Hummingbird
B) Arctic Tern
C) Penguin
D) Ostrich

A) Antarctica
B) North America
C) Europe
D) Asia

A) Plant more trees everywhere.
B) Scare them away for fun.
C) Offer them snacks during their journey.
D) Keep cats indoors, reduce pesticide use, and avoid disrupting their habitats.

A) Magnetoreception
B) Thermoreception
C) Electroception
D) Echolocation

A) To encourage birds to find new routes.
B) To make migration easier for birds.
C) To reduce bird populations.
D) To ensure the survival of bird populations and maintain ecosystem balance.

A) Global migration alert system.
B) Changes in daylight length and temperature.
C) Email reminders.
D) Loud noises in the environment.