Nota

Rujukan

Petikan teks

• Blockstein, D. E. (2002). Poole, A.; Gill, F. (para penyunting). Passenger Pigeon Ectopistes migratorius. The Birds of North America. Philadelphia: The Birds of North America, Inc., Cornell Lab of Ornithology. m/s. 611. Dicapai pada March 3, 2016.
• Fuller, E. (2014). The Passenger Pigeon. Princeton and Oxford: Princeton University Press. ISBN 978-0-691-16295-9.
• Greenberg, Joel (2014). A Feathered River Across the Sky: The Passenger Pigeon's Flight to Extinction. New York: Bloomsbury USA. ISBN 978-1-62040-534-5.
• Mann, C. C. (2005). "The Artificial Wilderness". 1491: New Revelations of the Americas Before Columbus. New York: Alfred A. Knopf. halaman 315–318. ISBN 978-1-4000-4006-3.
• Schorger, A. W. (1955). The Passenger Pigeon: Its Natural History and Extinction. Madison, WI: University of Wisconsin Press. ISBN 978-1-930665-96-5.