The article discusses the unique nesting behaviors of white-browed sparrow weavers, highlighting their cooperative breeding and architectural diversity.

• Families of up to **14 individuals** build multiple roosts that resemble grass pom-poms on acacia trees.
• The study involved over **400 roosts** from **43 families** in the Tswalu Kalahari Reserve in South Africa.
• It was found that the architecture of these nests varies significantly between families, indicating possible social learning rather than environmental influences.