This is Bird Note.

What is it that draws us to a romantic partner?

For birds, it might be a sweet song.

Compatible personality type, the right zesty scent, or outrageous dance moves.

The serenade of a male white-throated sparrow prompts a response in a female sparrow's brain

that resembles that of humans listening to their favourite music.

Most cranes, like these Sandhill cranes, duet with prospective partners for years before they begin breeding.

For Stella's Jays, birds of a feather pair together.

Couples in which individuals have a similar temperament, either both shy or both bold, tend to be the most

successful at raising chicks. Crusted orplets of both sexes produce a pungent citrus perfume.

Field biologists can smell a breeding colony from a boat as they approach. Blue-footed boobies, on the other hand,

dance. The birds display their feet to each other in a ponderous padadour, a sort of dance duet.

The bluer birds' feet are, the healthier the bird is.

Frater flamingos that have a larger repertoire of dance moves are considered more attractive

and the best dancers tend to pair up. How typical.

For bird note, I'm Wen Fetong.