Is It Normal Bird Making Noise Safely

Portland Press Herald: Birding: Noise pollution impact birds on so many levels

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Detroit Free Press: Noise pollution harming bird populations. This is what it does

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A University of Michigan study found noise pollution has a significant negative impact on wild birds. Noise can interfere with mating calls, parent-offspring communication, and predator detection.

The Conversation on MSN: Paris has successfully cut noise pollution, but urban birds still can’t sing at their natural pitch

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Paris has successfully cut noise pollution, but urban birds still can’t sing at their natural pitch

Mercury News: Scientists are learning how noise affects Bay Area wildlife as they work to conserve wetland birds amid a roaring urban soundscape

Scientists are learning how noise affects Bay Area wildlife as they work to conserve wetland birds amid a roaring urban soundscape

Ideal blood pressure is categorized as normal. Increased blood pressure may be categorized as elevated, stage 1 or stage 2 depending on the specific numbers. A diagnosis of high blood pressure is usually based on the average of two or more readings taken on separate visits.

A higher than normal concentration often is a result of not drinking enough fluids. Protein. Low levels of protein in urine are typical. Small increases in protein in urine usually aren't a cause for concern, but larger amounts might indicate a kidney problem. Sugar. The amount of sugar (glucose) in urine is typically too low to be detected.

Popular Science: Why do birds make so many different sounds? 100,000 audio recordings offer clues.

Why do birds make so many different sounds? 100,000 audio recordings offer clues.

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Ornithologist Katie LaBarbera arrives at the Coyote Creek Field Station in Alviso about 45 minutes before sunrise — peak time for bird activity. The early part of LaBarbera’s Sunday shift is ...