Ask an adult to help you by cutting a hole in the side of your plastic bottle, making sure it’s large enough to allow the birds to reach the seeds but not too large that seeds will be blown onto the ground on a windy day.
Then ask your adult helper to make a few holes in the base of your plastic bottle to allow any water that may become trapped to drain away when it rains
Tie some string around the top of the bottle and fill it with bird seed to the level of the hole.
Now hang it from a tree or washing line at a height that you’re able to re-fill it easily but not too low that it can be easily reached by cats.
Remember to re-fill your feeder with new seed, especially during winter months when birds come to rely on it.