When you hit the ball varying stages of early it goes to the right. When you hit the ball varying stages of late it goes to the left. When you hit at just about the right time it more or less goes straight.
Adjust your stance to control the distance, the game detects even the smallest nudge on the control pad so you'll need some practice with accuracy. Push forward to make it go closer and Pull backwards to make it go farther.
Every 3 pots you hit a crow will appear and as long as you hit the ball the onside the crow is on it will home in and hit it for 20 rupees.
Hit the crabs to restore pots.
Finally every time you break a gold pot another one will spawn so if you're really good you can chain gold pots.
I've got a quote that embodies you perfectly, but it's seventy-three posts long, has a few massive flowcharts, and lots of Xion-KMA to Me
Hirokey123's method of timing weather to hit early seams to work, but nobody is that sensitive to hit to the degree of a 2-3 pots. I wish they had made a better method for it in game. XD Far to sensitive. Anybody that can do so is a god. It may be best to rely on luck. Try and hit as many pots as you can to get the birds to appear. Best of luck!