Paleornithology is the study of ancient birds through the examination of fossil remains. This branch of paleontology helps scientists understand the evolution, diversity, and extinction of bird species over millions of years. By analyzing fossilized bones and other materials, researchers can reconstruct the physical characteristics and behaviors of these long-gone creatures. The findings in paleornithology contribute to our knowledge of how birds adapted to changing environments and climates. This field also sheds light on the relationships between ancient birds and modern species, revealing connections that can be traced back to their common ancestors, such as the dodo or Archaeopteryx.