Was near a creek hoping for some bird shots, when l noticed this tree snake foraging for stuff on a tree, less than 3 meters away. l didn't want to frighten it by moving, and had my 300mm on, so only got a section of him, when in an instant, it launched itself into the air, straight to the ground, when something small fell into the rockpool next to us, and l think it was hoping it was a critter of some kind to eat. It raised its head up eagerly with some sideways motion,showing it was ready to pounce. Unfortunately it was a false alarm, and it left after a minute or so of intense scrutiny