How to tell the difference between Male and Female birds

This Is AMAZING!!!

Until now I never fully understood how to tell the difference between Male and Female birds. I always thought it had to be determined surgically.

Until Now.

Which of The Two Birds Is a Female???

Below are Two Birds. Study them closely...See If You Can Spot Which of The Two Is The Female.

It can be done. Even by one with LiMiTED bird watching skills.