（Post:221118）What a cunning foraging behavior. There are birds that use spider webs as footholds to intercept prey caught in nets. なんとずるい採餌行動。蜘蛛の巣を足場にしながら網に掛かった獲物を横取りする鳥がいるんだ。
https://www.nationalgeographic.com/animals/article/this-spider-web-is-strong-enough-for-a-bird-to-sit-on-a-scientific-first