TY - JOUR T1 - Provisioning rules in cooperatively breeding long-tailed tits Aegithalos caudatus: An experimental study JO - P ROY SOC LOND B BIO PY - 1996/01/22 AU - Hatchwell BJ AU - Russell AF ED - VL - 263 IS - 1366 SP - 83 EP - 88 Y2 - 2025/06/20 ER -