Robyn Geldard received her master degree at the Imperial College London, and is now a PhD student in the School of Nature Conservation, at Beijing Forestry University  (co-supervised by Prof. Ben J. Hatchwell, University of Sheffield). She has an ongoing interest in the behavioural ecology and evolutionary biology of birds. With previous work focusing on evolutionary explanations for infidelity in house sparrows. Current research includes the role familiarity has on co-operative breeding  in the black-throated and sliver-throated tits.