white-faced heron (egretta novaehollandiae) is a living study in economy of motion.
… as whilst other birds flit and chatter, the heron finds permanence in the pause. It reminds us that insight doesn't always come from the chase; sometimes, it comes from standing perfectly still in the mud until the right moment presents itself.
.. aerodynamics of a fighter jet, diet of a pond enthusiast. High-speed grace meets low-speed snack search.. heron on the hunt - link here
White Ibis (Threskiornis molucca) in flight
Whilst Herons and Egrets are like siblings (they are in the same family), the Ibis is like a cousin (it is in a different family, but the same general group)