"1951 - Lubbock, Texas - The famous photographs from the "Lubbock lights" in Texas, 31 August 1951. Years later, ignoring all testimonies and evidences, skeptics stated that these objects were... birds.
This most ridiculous explanation was typical of how early UFO photos were often explained away. Carl Hart Jr. an 18-year-old student took this famous picture with his Kodak camera.
There were at least 100 witnesses who saw the objects. This is one of the classics of Ufology."
Source: UFOCasebook.com.