-
由 Udvardy, Miklos D. F., 1919-1998-
出版 1994 -
由 Udvardy, Miklos D. F., 1919-
出版 1977 -
Birds of the Pacific Northwest mountainsthe Cascade Range the Olympic Mountains Vancouver Island and the Coast MountainsBook由 Wassink, Jan L.
出版 1995 -
Bird guide of North Americathe best birding book for kids from National Geographic's bird expertsBook由 Alderfer, Jonathan K.
出版 2018