This bird sets the standard for all terns. The common tern is not the largest. It is not the rarest. It is not the most colourful. It is simply the one you are most likely to see. And that is fine. A bird does not need to be special to be successful. Success is often just showing up. Presence defines the status. Visibility confirms the role. Plumage is pale grey above and white below. A black cap covers the head from crown to nape. The bill is red with a black tip. Legs are orange-red. Tail streamers extend past the wingtips in flight. It looks like every tern you have ever seen. Most terns look similar. That is not a design flaw. That is a successful body plan. Uniformity works. Efficiency drives the design. Feeding involves small fish. Plunge-diving occurs from heights of up to ten metres. A common tern hovering over a school of baitfish is a study in focus. Head down. Wings beating. Then drop. The splash is small. The bird emerges with a fish. It swallows the catch and returns to hunting. Precision matters more than power. Accuracy beats force. The call is a harsh, rolling 'kee-arr'. It is often given in alarm. A colony of common terns is a noisy place. They call constantly. Arguments over territory happen frequently. Warnings of predators are issued. Arrivals and departures are announced. It sounds like chaos. It is organised chaos. Noise is a form of order. Communication maintains the structure. Breeding takes the species to sandspits, gravel bars, and low islands. The nest is a shallow scrape. Sometimes it is lined with shells or vegetation. Two or three eggs arrive. Both parents share incubation duties. Chicks are downy and well camouflaged. They can walk within days. Mobility is an early advantage. Survival depends on movement. Stillness invites predation. In New Zealand, common terns are summer visitors. Arrival happens in October. Departure is in March. Breeding occurs in small colonies around the North Island coast and the northern South Island. A few pairs nest on the Chatham Islands. They are not common, despite the name. Names are often misleading. Labels do not dictate abundance. Reality contradicts the title. Migration brings them from northern hemisphere breeding grounds. They spend the southern summer in New Zealand. That is a long way. A single bird may travel 30,000 kilometres in a year. It does this without a map. Navigation is instinctive. The journey is routine. Distance is relative. Scale becomes meaningless to the traveller. The path is known. The destination is fixed. The name 'tara' is shared with several tern species. Māori distinguished them by size and behaviour. The common tern was one of the smaller tara. It was known for its noisy colonies. Its skill at diving was noted. Observation requires attention to detail. The distinction matters. It always has. Specificity honours the subject. Generalisation obscures the truth. The bird carries on. No one told it otherwise.