As the egg opens, it turns into a mechanical predatory bird.

In the ensuing stillness, one of the mechanical birds began to sing.

The mechanical bird said nothing, nestled in his free hand.

The mechanical bird gave a small, strangled squawk and was still.

The enemies include anything from other tanks to mechanical birds.

He was like one of those mechanical birds that drinks from a water glass.

A century from now, men will fly through the air in mechanical birds.

When it landed on my feet, I realized it was a mechanical bird.

They swiveled back and forth slowly, like the heads of mechanical birds.

Somebody sent out those mechanical birds to attack us!