The term Hornet is applied to a group of wasps that make nests of foliage and wood. Throughout North America, you will typically find the white-faced or bald-faced hornet. Their nests are usually suspended from a tree limb. Yellow jacket is a common name used for a number of hornets due to their distinctive yellow markings. Yellow jackets build their nests close to or underground and are often found near humans. These insects can sting repeatedly and often attack in mass.