Which is the fastest bird

1. Which is the fastest bird:

a falcon
a pigeon
a crow?

2. Which is longer:

or
а rattlesnake
a anaconda?

3. Which is the smallest bird:

a eagle
a magpie
a hummingbird?

4. Which is taller:

or
a giraffe
a tiger?

5. Which is the most dangerous animal:

a hare
a squirrel
a wolf?

6. Which is bigger:

or
a blue whale
a elephant?

7. Which is the laziest animal:

a beaver
a squirrel
a sloth?

8. Which is faster:

or
a turtle
a cheetah?