The New Zealand Owlet-nightjar, Aegotheles novazelandiae, was a large species of owlet-nightjar

Owlet-nightjar

Owlet-nightjars are small nocturnal birds related to the nightjars and frogmouths. Most are native to New Guinea, but some species extend to Australia, the Moluccas, and New Caledonia. A New Zealand species is extinct...

 (family

Family (biology)

In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...

 Aegothelidae) formerly endemic

Endemic (ecology)

Endemism is the ecological state of being unique to a defined geographic location, such as an island, nation or other defined zone, or habitat type; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, all species of lemur are endemic to the...

 to the islands of New Zealand

New Zealand

New Zealand is an island country in the south-western Pacific Ocean comprising two main landmasses and numerous smaller islands. The country is situated some east of Australia across the Tasman Sea, and roughly south of the Pacific island nations of New Caledonia, Fiji, and Tonga...

. Fossil

Fossil

Fossils are the preserved remains or traces of animals , plants, and other organisms from the remote past...

 remains (which are common in the pellets of the extinct Laughing Owl

Laughing Owl

The Laughing Owl , also known as Whēkau or the White-faced Owl, was an endemic owl found in New Zealand, but is now extinct. It was plentiful when European settlers arrived in New Zealand in 1840. Specimens were sent to the British Museum, where a scientific description was published in 1845...

) indicate the species was once widespread across both North Island

North Island

The North Island is one of the two main islands of New Zealand, separated from the much less populous South Island by Cook Strait. The island is in area, making it the world's 14th-largest island...

 and South Island

South Island

The South Island is the larger of the two major islands of New Zealand, the other being the more populous North Island. It is bordered to the north by Cook Strait, to the west by the Tasman Sea, to the south and east by the Pacific Ocean...

. Despite a small number of reports of small owls being found in the 19th century that may have been New Zealand Owlet-nightjars, the species is thought to have become extinct around 1200 AD.

The New Zealand Owlet-nightjar was the largest species of owlet-nightjar, weighing an estimated 150-200 g. The species was also either flightless, as suggested by its small wings, or a very poor flier (the species has a strong keel). The diet probably consisted of invertebrates, as well as frogs and lizards.

The species rapidly became extinct after the introduction

Introduced species

An introduced species — or neozoon, alien, exotic, non-indigenous, or non-native species, or simply an introduction, is a species living outside its indigenous or native distributional range, and has arrived in an ecosystem or plant community by human activity, either deliberate or accidental...

 of Pacific Rats to New Zealand. Their remains have never been found in association with Māori middens, and are unlikely to have been hunted due to their small size and nocturnal

Nocturnal animal

Nocturnality is an animal behavior characterized by activity during the night and sleeping during the day. The common adjective is "nocturnal"....

habits.