Bird Migration

Name three reasons birds migrate.

"Where migration is concerned, birds are typically grouped into _________ _________, _____-________ ________, ______-________ ________, and ____-________ ________.

• permanent residents, short-distance migrants, medium-distance migrants, and long-distance migrants.

• permanent residents, short-time residents, medium-time residents, and long-time residents.

• temporary residents, short-distance migrants, medium-distance migrants, and long-distance migrants.

• temporary residents, short-term residents, medium-term residents, and long-term residents.

Migrating birds usually become _____ before they begin travelling.

Draw a compass and label the four cardinal directions:

"Some scientists have found that they (birds) follow markers on the land, such as mountains, rivers, or coastlines. This is known as

• landmark navigation."

• landscape navigation."

• landmark orientation."

Birds have _______ ____________, meaning they may be able to detect the Earth's magnetic field to help them navigate when they migrate.

• landmark orientation

• compass orientation

• magnetic sense

• magnetic orientation

Migrations are also called:

• Fly paths

• Flight roads

• Flyways

Birds don't travel strictly along flyways and have been known to shift their path occasionally.

• True

• False

List some reasons bird migration is triggered:

Write the corresponding records and record-holders from the "Record Setters" cards.