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bird migration (birds (ruby throaterd hummingbird, easterm bluebird,…
bird migration
birds
easterm bluebird
arctic trem
cedar waxing
black thorted blue walber
americon robin
ruby throaterd hummingbird
food
double there waight
birds eat a lot of food
birds spened weeks prepering with food to take flight
birds can travel at least 15,000 a day
birds can reach great heights as they migras
flying
not to spened to much energe flying
birds speened so much time flying they can lose up to 1% body fat per hour
birds that waigh less that a apple can fly thosends of miles
the averidge bird flys at about 30mp
big bird fly in the day because they have no predortes
small birds fly at night so nothing can hurt them
at the end of flight birds have no energe to fight off prederts
birds sleep while fly
At least 4,000 species of bird are regular migrants
north and south along a flyway