In order to survive, all organisms must rely on their senses to acquire information about their environment. Birds are sensitive creatures and have the same basic five senses we do: sight, hearing, touch, taste and smell. However, their senses are a bit different because they are custom-tailored for the bird's way of life. And like people, sight and hearing are the two most important senses for birds.
To learn more, read Bird Senses – Understanding Their World