In the newest episode of My Little Pony: Friendship is Magic, S6 E2 “The Crystalling, part 2”, at the very last scene before the end credits start, there's a small moving speck visible in the sky. What is that speck? Is it a pegasus, a changeling, a griffon, a cloud, a bird, a plane?
Here's an animation showing only that speck in the sky cropped. (Update: I have replaced the previous animation with a higher resolution one.) The camera is slanted in this scene, so the speck is actually flying horizontally.
And here's a full screenshot, showing the train that the main cast is taking home from the Crystal Empire. Follow the image to get a full resolution screenshot.