How do I know if my finch is male or female?

Males perform courtship displays to attract females. They will hop around, fluff their feathers, and dance in front of a potential mate. If you see your finch bobbing its head, jumping around, and making high-pitched sounds, it’s probably a male. Females, in contrast, stay calm and watch the male’s display. If a finch is passively observing rather than performing, it is likely a female.