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ALWAYS IN SEASON: Swallows mount aggressive defense of their space

Published 07/12/2009, Grand Forks Herald

Barn swallows have nested on two separate buildings, and they seem to be competing for air space. They’ve certainly become more determined to guard their own territories. Both broods have hatched, but the young are still confined to nests. Perhaps, that explains the adult birds’ aggressive behavior toward passing birds, cats and people. We have a third pair of swallows. These are cliff swallows who have built on to a nest that still another pair of barn swallows abandoned earlier in the season.

Word count: 679

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