Abstract Among the diverse sexual signals used by birds. the possible signaling functions of non-bodily objects during mating/courting displays remain unexplained. It is unclear whether such object-holding gestures are purely ritualistic or serve as an advertisement of an extended phenotype to potential mates. Estrildid finches (family Estrildidae) are characterized by mutual courtship. https://parisnaturalfoodes.shop/product-category/gf-coconut-shred-unswt/