An unseen bird called, clear and far from towards the woods.

Rainwater still fell in bursts as unseen birds took flight from the branches above.

And from somewhere near it came the sweet singing of the unseen bird.

"My love," came again the low, plaintive call, like a bird unseen in the night.

Yellow butterflies licked past, small lizards watched frozen from tree trunks and unseen birds announced our passing with shrieks.

Gibbons screeched in the branches and unseen birds gave mocking cries.

By the time I rounded the pool and reached the back entrance to the hotel, I'd had a chance to draw a lesson from the unseen birds.

Below the rocks to which they clung, smoke swirled like a dark sea; high above, unseen birds screamed and cawed in angry fear.

Frank and the heron stood attentively, listening to unseen smaller birds whose wild twittering now filled the air.

The other two followed him up, pulling themselves noisily through the branches and causing a lot of cawing and complaining from unseen birds high above.