Labrador Peninsula
In 1906, Hantzsch conducted research in Canada on the avifauna of the northeastern Labrador Peninsula, working in Killinek (Port Burwell) for several months, and then proceeding southward. He published "Contribution to Knowledge of the Avifauna of Labrador" in 1908. He also did research on egg shells. Hantzsch's research was not restricted to ornithology, and he published "Contribution to Knowledge of Northeastern Labrador" in 1909.