A new study in the journal Science documents the staggering loss of bird populations in North America — a decline of approximately three billion birds in total over the past 50 years. Local ornithologist Ken Burton says that Humboldt County is not immune to this trend. Using available data, Burton has determined that of the most commonly reported species in Northwest California, 69 percent of birds were reported less frequently. On the show, Burton digs into the data with the Green Gang to figure out the causes. 

Support the show