TY - `BOOK` AU - Hartshorne, Charles TI - Born to sing : an interpretation and world survey of bird song PB - Indiana University Press CY - Bloomington PY - 1973 LA - eng SE - XVI, 304 S. N1 - Bibliography: p. [256]-272 SN - 0-253-10800-4 SN - 978-0-253-10800-5 CN - UBN/WT 4530 H335 AN - UBHD-1038039 ER -