A decade-long collaboration by the US and Mexico to restore the wetlands of the Colorado River Delta has borne fruit — or rather birds. Looking at areas where the restoration work took place, a recent study found that more than half of the populations of bird species have stabilized or increased. To learn more, The World’s Host Marco Werman spoke with Osvel Hinojosa-Huerta. He is the director of the Coastal Solutions Fellows Program at the Cornell Lab of Ornithology and one of the authors of the 2024 study.