How do I catch birds? [duplicate]
Some tips from this thread:
Upgrade your net. This increases the likelihood that you will be successful.
Don't flick the net. Generally hold it up and to the right, then sweep it down diagonally. The entire motion should take about half a second. A slower, sweeping motion seems to work better than quickly flicking the net.
Slowly approach with the net already drawn. Watch the shadow as it goes over a bird. Swing straight down when the bird is where the shaft of the net and the net connect going by the shadow. Also watch the bird's movements. The blue ones usually sit longer than the others, but not always. If you're close to catching one and it moves closer to you, there is a good chance they'll all fly away.