qT=1&tQ=A female weaverbird will refuse to mate with a male who...&tC=has built a shoddy nest.|won't kill other male weaverbirds.|hasn't brought worms to her nest.|has plucked several of his feathers out.&cC=1&fB=The female knot-tying weaverbird will refuse to mate with a male who has built a shoddy nest. If spurned, the male must take the nest apart and completely rebuild it in order to win the affections of the female.