TY - BOOK AU - Michelle L. Hall||Naomi E. Langmore TI - Fitness Costs and Benefits of Female Song SN - 16648714 KW - female-female competition||sexual selection||social selection||female ornaments||vocal learning||sexual dimorphism||female fitness||birdsong||duetting||resource defense UR - http://journal.frontiersin.org/researchtopic/3139/fitness-costs-and-benefits-of-female-song ER -