US and Canada have lost more than one in four birds since 1970
(The Guardian Canada)

Three billion birds have been lost across diverse groups and habitats, in what researchers describe as a `wake-up call´The US and Canada have lost more than one in four birds - a total of three billion - since 1970, culminating in what scientists who published a new study are calling a `widespread ecological crisis`.Researchers observed a 29% decline in bird populations across diverse groups and habitats - from songbirds such as meadowlarks to long-distance migratory birds such as swallows and backyard birds like sparrows. Continue reading...