@article{article, title = {{The evolution of sex roles in birds is related to adult sex ratio.}}, url = {{}}, year = {{2013}}, month = {{1}}, author = {{Liker A and Freckleton RP and Sz茅kely T}}, doi = {{10.1038/ncomms2600}}, volume = {{4}}, journal = {{Nat Commun}}, pages = {{1587}}, note = {{Accessed on 2025/06/20}}}