TY - BOOK TI - The evolution of bird-song : with observations on the influence of heredity and limitation UR - https://www.biodiversitylibrary.org/item/15883 PB - A. and C. Black CY - London PY - 1896 AU - Witchell, Charles A. (Charles Aldolphus), KW - 59.82:15,8 KW - Birdsongs ER -