The nests are vulnerable to attack, particularly by crows, the more so early in the year when the leaf cover is not fully formed.

Sometimes we glimpsed them through the leaf cover, tiny in the sky like black mosquitoes.

The sky was flaming over the leaf cover.

Here there is some leaf cover surrounding still, open, well-lit spaces which act as studios for the singing birds.

But then the leaf cover shifted again and now he thought he'd dreamed it.

Here and there little rock knolls broke free of the leaf cover.

Ephemeral lowlands have a dense leaf cover of many different species.

The Asian worm, he explained, eats through all this leaf cover in a few short months, leaving the ground barren.

The high leaf cover darkened the swamp, making the air still and dank.

The best prevention is more leaf cover, which will shade the fruits while making them sweeter.