Not the sharpest set of photos (unlike the Anhinga’s pointy bill) but I thought it was an interesting series. After the “Snake Bird” impales it’s prey, it has to flip it loose using a few quick jerks of the neck.
Like juggling, precision is the key. Toss it too far and a nearby opportunist will steal it from you, miss the catch and it’ll swim away.
As you can see from the fish shape wedged in the neck, this Anhinga was well-skilled.