Here are a few photos of the 'action'. Not very good quality I'm afraid due to the rapidly fading light, I resorted to flash on a couple.
The small team only just outnumbered the ducks.
Fraser and Terry removing the catch....
... And a closer view. At the back is the only female we caught, I got to 'process' her (which incidentally means fit a ring, measure the wing, head /bill, tarsus and weigh her, not put her in a blender, which is what 'process' always calls to my mind) , she was very petite indeed, a real cutie.
After processing all the birds we re-set the net so that those who hadn't seen it in action before could do so. Here Fraser's pulling one of the bungees into position.
Securing bungee to the net and trigger mechanism.
This shows one side of the net set and ready to go, when the trap is sprung the bungee pulls the net out and height is gained by the net being attached to rings which slide up the angled pole.
If that's not clear then take a look at this little video of it in action. It's fast, blink and you'll miss it! Have the sound on and you will hear the sibilant sound it makes, hence the name 'Whoosh Net'.