Let's see if I can relay this in a coherent fashion.

3 pieces: 1. A walking stick with a hole going completely through it near the top of the stick.
2. A peg, slightly larger than the hole, with one end beveled to just fit in the hole.
3. A light snare, I believe made of the inner strings from paracord, with a small knot tied in it.

The walking stick is shoved into the ground, the line from the snare is fed through the hole. A weight is tied on the free end. The peg is placed in the hole in the walking stick. The knot in the snare line should be placed against the peg where it enters the walking stick. This tension, the knot being pulled by the weight pressing on the peg, holds the peg in place. The snare is draped over the peg.

When a bird lands on the peg, it's weight will dislodge the peg, causing the weight to fall and pull on the snare, hopefully snaring the bird.

An alternate method to power the snare is to tie a spring pole to the walking stick. When using a spring pole to power the snare, the whole mechanism can be turned upside down and used as a ground level snare.

I just purchased and reviewed the first five of Ron Hood's Woodsmaster Series DVDs, covering fire, shelter, survival kits, navigation and trapping. I can not recommend them enough. Some of the material will be familiar to you, but he presents some new and interesting material and methods. I've already started altering my some of my kit. An excellent resource from someone who obviously knows what he's doing.

Hope this helps.

Gerry