05/22/2026
Part two of the two-fer: Hoy's documentation and preservation of birds led him to collecting and preserving this, now extinct, passenger pigeon. Passenger pigeons were named after passenger trains. A single flock could be made up of millions of birds. They were so loud when they flew overhead they sounded like a train’s engine. Humans hunted them so excessively they went extinct in 1899. The extinction of the passenger pigeon led to the passing of wildlife preservation laws.