At this time of year there's always one thing to worry about. Will our swifts be back? We always have a few and it's a great joy to sit out on a balmy summer's evening to watch them screaming overhead. However, their numbers have been dwindling and we fear the first year when none returns. One Monday, one appeared. By Wednesday there were three up in the sky. And over the weekend four have been providing a wonderful aerial display. Four may seem (and is) very few - but at least it's not zero.
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