Green, J., Freckleton, R., & Hatchwell, B. (2016). Variation in helper effort among cooperatively breeding bird species is consistent with Hamilton’s Rule. Nature.

Green, J., R. Freckleton, and B. Hatchwell. Variation in Helper Effort Among Cooperatively Breeding Bird Species Is Consistent with Hamilton’s Rule. Nature, 2016.

Green, J., et al. Variation in Helper Effort Among Cooperatively Breeding Bird Species Is Consistent with Hamilton’s Rule. Nature, 2016.