People can be individually identified by their handwriting or by their artistic creations, including architectural designs. Like us, animals build physical structures, including nests. To determine whether we could assign a construction signature to nest-building weaverbirds we collaborated with texture analysis expert André Backes from Universidade Federal de Uberlândia, Brazil, using computer-aided texture analysis to classify the weave patterns in their nests. We found that individual weaverbirds did indeed produce nests with signature weave patterns. This shows both that like us individual animals have distinct construction styles and that texture analysis can be used to detect this individuality.