Migratory birds are some of nature's most magnificent creatures that play important ecological, economic, and cultural roles. Neotropical migratory birds nest in North America and migrate south to Latin America and the Caribbean for winter. Over half of bird species nesting in the US are neotropical migrants. These include songbirds, waterfowl, birds of prey, shorebirds, and others. Migratory birds may be at risk due to lack of protection during nesting season or migration. The legislative definition of migratory birds includes species that annually migrate through parts of North America, Central America, South America, Asia, and beyond.