Avian architects: weaver birds in Africa have unique building styles
ph. A white-browed sparrow weaver looks up at a neighbouring roost. Wolfgang Kaehler/LightRocket via Getty Images Maria Cristina Tello Ramos, University of Hull From afar, the acacia trees look like they have been decorated with grass pom-poms. The birds have been busy, building shelters of straw and grass. Up close the real shape