The first concludes there are three billion fewer birds in the US and Canada today compared to 1970 – a loss of 29% of North America’s birds.
- Victoria Gill
The second outlines a tipping point in “the Asian songbird crisis”: on the island of Java, Indonesia, more birds may now live in cages than in the wild.
Scientists hope the findings will serve as a wake-up call.
The two studies are published in the journals Science and…