Almost any bird can hold it's tail to create a notched look. With this odd pose and only one photo, I wouldn't trust it.
We cannot see the mandible at all well enough to know the color of it, particularly given the overexposed background which makes dark things darker by comparison.
Most of the head is shadowed relative to the rest of the bird, so I wouldn't trust this, either.
All that said, it might well be a HAFL.