@book{bhlitem36838, title = {The Bulletin of the Massachusetts Audubon Society }, volume = {v.4, 1920-1921}, copyright = {NOT_IN_COPYRIGHT}, url = {https://www.biodiversitylibrary.org/item/36838}, note = {https://www.biodiversitylibrary.org/bibliography/8876}, publisher = {Boston, Massachusetts Audubon Society, }, author = {Massachusetts Audubon Society.}, year = {1920}, pages = {100}, keywords = {59.82.06(74.4)|Birds|Massachusetts|Nature conservation|Periodicals}, }