Utah education news

Some birds are so stressed by noise pollution that scientists believe they have PTSD

The bluebird didn’t realize what she was getting herself into when she chose her new home, about 75 yards from a natural-gas compressor. It was only as the days and weeks wore on that the low whine of machinery started to take a toll. It was harder to hear the sounds of approaching predators, or even the normal noises of the surrounding world, so she had to maintain constant vigilance. Her stress hormone levels became skewed; her health deteriorated. She couldn’t resettle elsewhere, because she had a nest full of hatchlings to tend. Yet her chicks suffered too, growing up small and scantily feathered — if they survived at all.

Some birds are so stressed by noise pollution that scientists believe they have PTSD

The bluebird didn’t realize what she was getting herself into when she chose her new home, about 75 yards from a natural-gas compressor. It was only as the days and weeks wore on that the low whine of machinery started to take a toll. It was harder to hear the sounds of approaching predators, or even the normal noises of the surrounding world, so she had to maintain constant vigilance. Her stress hormone levels became skewed; her health deteriorated. She couldn’t resettle elsewhere, because she had a nest full of hatchlings to tend. Yet her chicks suffered too, growing up small and scantily feathered — if they survived at all.

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