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

In species like Zebra Finches, the beak color is a great way to determine gender. Male Zebra Finches have bright red or deep orange beaks, while females have lighter, pale orange beaks. This difference becomes more noticeable as the birds mature. In other species, the beak difference might not be as obvious, but it’s still a good indicator for identifying gender.