By 1966, there were fewer than 50 active nests on Gardiners Island, with only four chicks in total.

It was estimated in 1993 that 7 active nests were located on the island.

An active nest at the Pan Am building failed - an egg was spotted and then it disappeared.

Two parent herons are counted for each active nest.

In 1971 there were only 34 active nests on the island and they produced but 17 young.

But caution here, too, as it would be sad to cut down an active nest in the process of tidying up the property.

And in one breeding season, the scientists counted 60 active nests in a 2.3-square-mile area.

By 1976 the Department of Environmental Conservation counted just 69 active nests.

An active nest is one in which there are eggs or nestlings.

And, because of that, I never mind coming back to an active nest.