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

A stark reality has emerged from Ontario’s Long Point Bird Observatory: over 60% of flying insects have vanished in four decades. This alarming decline is directly impacting tree swallows, which are shrinking in size and producing fewer offspring due to a critical food shortage. While climate change plays a role, the study highlights biodiversity loss as a major, often overlooked, driver of ecological change, urging a multi-faceted approach to conservation.