Noise pollution causes decrease in stress hormone levels in birds, lowers chances of self-protection

Noise pollution causes decrease in stress hormone levels in birds, lowers chances of self-protection  International Business Times, Singapore Edition Huge bird discovery astonishes scientists  Brinkwire (press release) Some birds are so stressed by noise pollution that scientists believe they have PTSD  Salt Lake Tribune Some birds are so stressed by noise pollution it looks like they have PTSD  The Denver PostFull coverage

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