Tame birds dream of freedom. Wild birds fly!

Flock of birds.

The Origin of Birds .

Birds build nests of twigs.

Hawks are birds of prey.

Flightless birds are birds that can't fly.

So for instance, most of the birds in this picture are migratory birds.

Birds sing.

Birds sing.

Birds fly.

Some of the birds didn't fly.

The eagle is king of birds.

Some kinds of birds can't fly.

Birds are natural enemies of insects.

Birds of a feather flock together.

He studied the flight of birds.

The trees were full of birds.

The trees were full of birds.

We saw a bunch of birds.

A flock of birds is flying.

The Origin and Evolution of Birds .

Some large birds prey upon small birds and animals.

Many kinds of birds live in Japan.

Many kinds of birds live in Japan.

Tom takes good care of the birds.

I listened to the music of birds.

Birds of a feather will gather together.

Birds of a feather will gather together.

Birds of a feather will gather together.

Feathers are a distinguishing feature of birds.

The birds sang.

Birds build nests.

Birds lay eggs.

Birds lay eggs.

These are birds.

The birds fly.

Birds have wings.

Birds are chirping.

Birds are chirping.

Birds drink water.

Birds scare me.

Can birds smell?

Birds have beaks.

I saw a flock of birds flying aloft.

There were hundreds of birds on the lake.