Other Names: Bird's Nest in the Cables
Although called a Bird's Nest, this trick is much more similar to a Planche or a Bat. Swing out and back to the platform. At the backend, bring your legs up in front of you and pass them in between your hands as if you were going to hook your knees on the bar, open your legs and put the fly cables on the tops of your feet (where your shoe laces would be). Your arms should be straight. Squeeze your butt and arch your back!
This trick is made slightly more difficult by the feet being on top of the cables at the moment of the catch, so need to be unhooked on the 'HEP'.
You can find out more about this trick in my books:
IMAGE CREDIT: Aerialmoves.com