ScienceHouse Sparrows Released in Brooklyn in 1851 Spread Across North America
In 1851, 16 house sparrows were released in Brooklyn, New York, to control caterpillars threatening basswood trees. Imported from England, these birds were initially kept in cages before release. Despite early struggles, the sparrows quickly spread across North America within 50 years, becoming a common sight. This introduction aimed to protect city trees from linden moth damage.
HT World·4h ago·Brooklyn



