Wing shape determines how far birds disperse

Source: Science Daily

Bird dispersal movements are thought to depend on complex demographic and genetic factors. Researchers show that there may be a simpler explanation: bird dispersal distances depend on the morphology and flight efficiency of the wings. Bird populations and the capacity of species to move across the landscape can determine which species will thrive and which may become endangered.

https://www.sciencedaily.com/releases/2021/09/210902174636.htm