Although many cameras have Sports mode , it is best to stick to aperture priority , shutter - priority or program options. If you want to learn on the jo. Set your ISO according to the weather conditions, keeping it as low as possible to avoid unnecessary noise.
You'll need a shutter speed of around 1/500sec or faster to freeze the action , but its worth experimenting it with slower speeds to introduce a little motion blur in the wings. Birds are pretty speedy creatures and if you're going for frozen shots , it is advisable to take advantage of your camera's burst mode capabilities. Dont go firing off shots randomly , however ; just squeze the shutter release and shoot a few frames as you track the bird's flight path.