For example, birds may expend more of their reserves on thermoregulation if they spend the night exposed to the wind on a song post than if they are in a sheltered roost site.

例如，与在有遮挡的栖息地的鸟类相比，如果鸟类在风中露宿一晚，它们可能会更多地利用体温调节。

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Many of the alleged victims were housed in caravans at Beggars Roost site in Staverton, near Cheltenham.

BBC: Connors trial: Worker 'would have been found if he left'

Many of them were housed in caravans at Beggars Roost site in Staverton, near Cheltenham, the jury was told.

BBC: Caravan park in Staverton

Two of the best are " Ice Lights", a light-installation at Vancouver City Hall that looks like ice framing the historic building, and " The Birds", a pair of larger-than-life bird sculptures that once stood sentry at the site of the Olympic Village and now roost at the Southeast False Creek Plaza.

BBC: Vancouver after the Games