Swallows, Purple Martins, Chimney Swifts – these are the birds that soar high above us on a summer day, their song connecting us to a world we can never know above our familiar places.
They share our human habitat, but they don’t eat our food, so we don’t consider them to be pests, and they in fact provide what the market calls environmental services by consuming insects that might bother us or eat our crops.
But they’re in trouble. As Mike Cadman, a songbird biologist with the Canadian Wildlife Service, told a recent meeting of the Midland Penetanguishene Field Naturalists Club, birds that catch insects on the wing have experienced dramatic declines in the past few decades.
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