The bird churping when i start my car

At first it was just when I used the air conditioner. Even now when I start the car and give it gas to drive the noise is gone. When I am stopped and the car is running it sounds like a bird chirping again. What is making that noise? Can anyone help.

Have the engine’s drive belt(s) checked. Either adjusting the belt tension or replacing the belt(s) should resolve the problem.

Thank you