Birds are often scared of humans because we are much larger than they are, making us seem like predators. Our movements can also be sudden and unpredictable, which can startle birds. Additionally, humans often make loud noises or carry objects that can be frightening to birds.
It is important to be aware of how our behavior can affect birds, and to take steps to minimize our impact. For example, we can avoid making sudden movements or loud noises around birds, and we can be careful not to approach them too closely. We can also provide safe places for birds to nest and feed, such as birdhouses and bird feeders.