Explore the evolution of bird wings in this Royal Tyrrell Museum Speaker Series talk by Dr. François Therrien, Curator of Dinosaur Palaeoecology. Delve into the discovery of feathered ornithomimids from Alberta and their implications for understanding wing origins. Learn about the historical context of dinosaur feather discoveries, the changing perceptions of dinosaur appearances, and the phylogenetic distribution of feathers. Examine various hypotheses for wing and flight evolution, and investigate the first North American feathered dinosaur findings. Analyze the arrangement of feathers in modern birds and ornithomimids, considering the age of wing development and potential functions. Gain insights into the origin of wings and draw conclusions about this fascinating aspect of dinosaur and bird evolution.