Wing of a Bird Small 320×316 Medium 640×631 Large 1024×1010 Download TIFF Original 2434×2400 | (1.4 MB) Description An illustration of the wing of a bird. Keywords appendage, bird, device of flight, feather, un ala, wing Galleries Bird Anatomy Source: Hall, Guillermo Poco a Poco: An Elementary Direct Method for Learning Spanish (Hudson, NY: World Book Company, 1922)