With 95% of the USA developed, 3 billion birds lost in the last 50 years, and insect species declining and endangered, Professor Douglas W. Tallamy’s solution is to set up functional ecosystems in our yards; in effect, to create the Homegrown National Park, with an estimated 20 million acres of conservation corridors. “The quality of our lives depends on the quality of our local ecosystems,” he says, urging us to take part in his plan to preserve wildlife.