What is it that draws us to a romantic partner? Birds have lots of ways to catch the attention of a mate. Most cranes duet with prospective partners for years before they begin breeding. Crested Auklets of both sexes produce a pungent citrus perfume. And Blue-footed Boobies dance, showing off their feet to each other.More info and transcript at BirdNote.org. Want more BirdNote? Subscribe to our weekly newsletter. Sign up for BirdNote+ to get ad-free listening and other perks. BirdNote is a nonprofit. Your tax-deductible gift makes these shows possible.