A Bird-Bander's Guide to Determination of Age and Sex of Selected Species
Pennsylvania State University, 1969.
Status: Out of printSpiralbound. 1969. Spiral-bound in good condition. Previous owner's name stamp on title page. Spotted front cover. The determination of the age and sex of live birds, externally, cannot be done by any one method; methods vary from species to species. Clues to determining the age and sex are described. 181 pages. Good. Item #C199
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