Slow and kneesy gets close to wary Glossy

How to sneak up on a wary Glossy Ibis (Plegadis falcinellus)? 

Slow and kneesy does the trick. Camera and low tripod first through long grass and chomped hymenachne, knees in mud and bum near heels.

No fun, but beats crawling. Anyway, did the trick at Mungalla Station today.

And here's a walk-in shot from another day.