Bird banding! Learned a lot about it from my biology teacher, who also does it. (He has also traveled a good distance to watch birds with other bird watchers. He would share pictures from his trip with us!) From what I remember right, the netting that the birds get caught in is called a mist net (over here in the US, at least). It's really cool that the steps and methods for bird banding are the same in both countries! (Probably the same worldwide. But still cool!)