Birds are a diverse group of animals that can be found in almost every corner of the world. They come in many shapes and sizes, and have adapted to a variety of habitats. Two of the most common behaviors associated with birds are nesting and molting. Nesting is the process of building a nest in which to lay eggs and raise young. Molting is the process of shedding old feathers and growing new ones. Hovering is another behavior often seen in birds, where they remain in one spot in the air for extended periods of time. All of these behaviors are seen in birds at times, making them an interesting and unique species.