University of Cape Town
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Helpers don’t help when it’s hot in a cooperatively breeding bird, the Southern Pied Babbler

posted on 2022-11-21, 10:40 authored by Amanda BourneAmanda Bourne, Amanda Ridley, Susan CunninghamSusan Cunningham

In cooperatively breeding Southern Pied Babblers, non-breeding helpers reduce their incubation effort on hot days, but breeders do not. This significant decline in helper contribution to incubation at high temperatures could help to explain why previous research has shown that larger pied babbler groups do not have higher breeding success than smaller groups during hot weather.


DSI-NRF Centre of Excellence at the FitzPatrick Institute of African Ornithology

University of Cape Town

Oppenheimer Memorial Trust (grant number 20747/01)

British Ornithologists’ Union

Australian Research Council (grant number FT110100188)

National Research Foundation of South Africa



University of Cape Town