Canada has lost over 60% of its flying insects since the 1970s, leaving tree swallows smaller and less successful at breeding, scientists found

Canada has lost over 60% of its flying insects since the 1970s, leaving tree swallows smaller and less successful at breeding, scientists found

More than 60 per cent of Canada’s flying insects have disappeared from a single site over the last four decades, starting in the late 1970s, and the effects can be seen among the birds that rely upon ...