syringeal

Updated: July 10, 2025

Maurice Thompson who, by the way, found time to do something else besides writing "Alice of Old Vincennes," and something just as creditable to his talent, too dissected many birds with special reference to this subject, and gave close attention to birds in the act of singing, both out of doors and in captivity, and I am convinced that he proved the theory of the syringeal origin of bird song to be an erroneous one.

Leander S. (Leander Sylvester) Keyser - Our Bird Comrades