Thats what I thought at first. Maybe my daughter or son played a trick on me. But nope, there it was, all warm and freshly laid. Poo little birdy. All along I thought he was a he. ;D
Apparently this happens to Macaws at her age. https://www.google.co.uk/url?sa=t&source=web&rct=j&url=https://www.petcha.com/older-macaw-begins-to-lay-eggs/&ved=0ahUKEwjhx4Ksxq7XAhWP0RoKHVjkAi4QFghvMBM&usg=AOvVaw298iT8Q3-swMRR22gvsqKt