Most of the New Zealand birds in this database arrived here by evolution or accident. The little owl arrived by committee decision. Between 1906 and 1910, acclimatisation societies released roughly three hundred of them across Otago and Canterbury with the explicit aim of controlling small introduced birds that were damaging farms. The plan was not entirely wrong. The little owl did establish. Whether it achieved its intended purpose is a more complicated question. Athene noctua is a compact, flat-headed owl, roughly the size of a large fist, with a permanent expression of mild offence. It bobs its head when curious and bobs it again when uncertain, which means it spends considerable time bobbing. The yellow eyes are large relative to the face and give it a look of aggressive attentiveness even at rest. It is, by owl standards, conspicuous: active at dusk and dawn rather than purely at night, and often visible on fence posts and power lines in open farming country. On the South Island, it found the farmland, orchards, and scrubby grasslands much to its liking. It spread from Otago and Canterbury northward through the eastern and northern South Island over the following decades, eventually reaching Golden Bay and establishing smaller outposts in Westland and Fiordland. It did not colonise the North Island, and shows no particular signs of trying. The territory it holds suits it well enough. Diet turned out to be the central issue with the little owl's introduction. Early fears focused on native birds. What researchers actually found was that invertebrates dominate the menu: beetles, earthworms, crane flies, and similar items make up the bulk of what it eats across most habitats. Small birds do appear in the diet. Lizards feature occasionally. Urban populations in Christchurch have shown a higher proportion of vertebrate prey than expected. The overall effect on native wildlife has not been definitively established, but the question has not been entirely put away either. There is an odd middle ground the little owl occupies in New Zealand law. It is partially protected under the Wildlife Act, unlike most introduced birds, which have no protection at all. It is not actively managed. It is not controlled. It simply occupies its strip of South Island farmland and does what small crepuscular owls do: hunts, nests in whatever cavities are available, defends a territory, and watches everything from fence posts with an air of permanent mild suspicion. It arrived with an agenda assigned by someone else. Whether it fulfilled that agenda is, after more than a hundred years, still an open question.