Adams, Steve. Blue Jays Sign Greg Bird To Minor League Deal. mlbtraderumors.com. March 10, 2022 [March 10, 2022]. (原始内容存档于2022-10-16). Blue Jays release
(link) Sick, Helmut. About the blue macaws, especially the Lear's Macaw. Pasquier, Roger F. (编). Conservation of New World Parrots: Proceedings of the ICBP