Phermones for Nest Building

I woke up thinking that. I believe there might be a nest building scent that tells others we are willing to build a nest with them. If you have a lack of that phermone then it might explain it? If you already built a nest then it might put out a scent that you are taken... I don't know if that made any sense at all... I wake up feeling random things... I don't know if that made any sense at all...
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