This audio story is brought to you by BirdNote, a partner of The 吃瓜黑料. BirdNote episodes air daily on public radio stations nationwide. 5600 Transcript: This is BirdNote! The call of this water bird, the Pied-billed Grebe, is unusual isn’t it! Their nests are unusual too – little platforms of plant material that float on water, hidden behind vegetation. We’re with Martin Muller, an expert who loves unraveling the mysteries of Pied-billed Grebes: “Well, there’s the nest…there it is! We didn’t even see it because we were standing on the wrong side of the cattails, so if we step back a little bit…without the bird seeing…us directly staring at it, it’ll carry on.” The birds are diving for decaying plant material, picking it up from the bottom of the lake, piling it up until it forms a floating mass. “Now this will gradually sink so they keep adding on to it… and when the first egg is laid, it can be laid in a...