Wildlife spectacles are marvels of nature. They can involve brief gatherings of tens of thousands of individuals for feeding, mating or giving birth. Examples include large nesting seabird colonies, enormous gatherings of monarch butterflies, seasonal mass movements of wildebeest, snake congregations, turtles on nesting beaches, shark birthing areas, and bird migrations. For many species, these are key life history events that are crucial for population regeneration. Today the importance of these massive biological gatherings is widely recognised, and many land-based events receive some protection. Indeed, many wildlife spectacles are now important generators of tourism dollars.