Here's a news article to make you pause:
Twenty common birds -- including the northern bobwhite, the field sparrow and the boreal chickadee -- have lost more than half their populations in the past 40 years, according to the society's research...
... And like the proverbial canary in the coal mine, the health of a region's bird population is often a harbinger of the health of other wildlife and of human populations as well.
"The focus isn't really on what's happening to these 20 birds, but what's happening to their environment," said Greg Butcher, the society's conservation director...
Read the complete article here.
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