@article{article, title  = {{Variation in helper effort among cooperatively breeding bird species is consistent with Hamilton's Rule.}},

 publisher = {{Nature Publishing Group}},

 url = {{https://eprints.whiterose.ac.uk/id/eprint/104221 http://dx.doi.org/10.1038/ncomms12663 }},

 year = {{2016}},

 month = {{8}},

 author = {{Green JP and Freckleton RP and Hatchwell BJ}},

 doi = {{10.1038/ncomms12663}},

 volume = {{7}},

 journal = {{Nature Communications}},

 pages = {{12663}},

 note = {{Accessed on 2025/11/23}}}