In 1851,16 house sparrows were released in Brooklyn, reportedly to eat caterpillars; in less than 50 years, they spread
You’ve probably seen one today. A small brown bird hops around a café patio, pecking at crumbs as if it owns the place. It’s easy to ignore, but this bird has an interesting North American backstory. According to a 2010 study in Biological Invasions by Michael Moulton and colleagues, the first house sparrows in the … Read more