"From a perch, it walks into the water and deliberately submerges, but it cannot defy the laws of specific gravity and walk along the bottom. Undoubtedly when entering the water, it grips with its strong feet, but the method of progression beneath the surface is by swimming, using the wings effectively for "flying" under water. It holds itself down by muscular exertion, with its head well down and its body oblique, its course beneath the surface often revealed by a line of rising bubbles."

That's molten lead. Such is their dedication to fishing...

It’s fishing.

It's a birb going fishing

…said the fish

Crayfish, on their way out of the water: "Wait, where ya going? We just arrived!"

Imagine turning a corner in the middle of your town and you just see a Great White Shark perched on a bin, quietly waiting.

Brennan agrees: https://www.youtube.com/watch?v=dqqT6r568rY

Its actually a plane.