In 1927 she moved to Columbus, Ohio, where she carried out the study of sparrows that established her as one of the leading ornithologists in the world, recording the behaviour of individual birds over a long period of time.
She moved to Columbus, Ohio. This was in 1927. She carried out the study of sparrows. These sparrows established her as one of the leading ornithologists in the world. She was recording the behaviour of individual birds over a long period of time.