DNA analysis of bluebird feces reveals benefits for vineyards.
Do bluebirds nesting in California's vineyards help grape growers by eating agricultural pests, or hurt them by eating insects that are beneficial? The researchers behind a new study found that bluebirds' presence is likely a net positive--and they did it by analyzing DNA in bird poop.
https://www.sciencedaily.com/releases/2016/11/161123141730.htm
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Oooh! I like falconry!
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