Eric Walker added a number of topics and a number of links to Aves, and added Aves to Theropoda and Amniota

Eric Walker added Lithornithidae to Lithornithiformes, and added Lithornithiformes to Aves

Eric Walker added Lithornithidae - Wikipedia and This Unusual Bird Superpower Goes Back to the Dinosaur Extinction - The New York Times to Lithornithidae, and added Lithornithidae to Lithornithiformes