Vanity, like money is the root of many problems. It causes stress as we struggle to look a certain way or buy stuff we don't need. Vanity might even cause us and/or our leaders to think we have all the answers and therefore have the right or even responsibility to control the government of another country. For a red-bellied woodpecker in my back yard, its vanity is linked to its survival.
Territory is important to the black and white speckled bird. They are larger than most song birds and need an area large enough to provide them with enough food. They don't need more competition for food, mates or nesting sites.