@book{bhlitem59659, title = {Our migrant birds and how to know them }, volume = {(1922)}, copyright = {NOT_IN_COPYRIGHT}, url = {https://www.biodiversitylibrary.org/item/59659}, note = {https://www.biodiversitylibrary.org/bibliography/14512}, publisher = {London, Thornton Butterworth, 1922}, author = {Elms, E. F. M.}, year = {1922}, pages = {152}, keywords = {Birds|Great Britain|}, }