@article{article, title = {{Temporal variation in fitness payoffs promotes cooperative breeding in long-tailed tits Aegithalos caudatus.}}, url = {{}}, year = {{2002}}, month = {{8}}, author = {{MacColl ADC and Hatchwell BJ}}, doi = {{10.1086/341013}}, volume = {{160}}, journal = {{Am Nat}}, issue = {{2}}, pages = {{186-194}}, note = {{Accessed on 2025/04/11}}}