Many Organisms Move from Place to Place in an Effort

Essay

Many organisms move from place to place in an effort to locate and occupy the environment to which they are best adapted. Compare the movement of a bird flying back and forth between its tropical wintering area and its temperate breeding range with the movement of a lizard as it shifts between its burrow and the surface and between shaded and sunny areas on the surface. Is the term "migration" properly applied to both types of movement?