In the last 50 years, 3 billion birds have disappeared from the planet. While many in the birding community have noticed declines at their backyard feeders, this compilation of data from the largest bird organizations shows just how alarming these losses are. A study was published based on years of citizen science and research. The message was very clear. One in every four birds is gone and there is something we can do about it.  The habitat that has the most significant loss is grasslands. Like the grasslands in…