The 12 Days of Christmas - Day 3
In the post today, one member of every wizarding household receives a box containing one golden egg.
When the box is opened, the egg begins to shake and crack - when it cracks open a baby chick emerges that quickly ages into a French hen and flies away. It flies a few feet, then disappears, but as it disappears you hear a whisper that says, again, "They're coming."
Then a message appears in the air that reads \ "Your True Love" and then fades away, just as it did yesterday.