Battle of Hingakaka

The Battle of Hingakaka (sometimes Hiringakaka) was fought between two Maori armies made up an allied southern North Island army and a Tainui alliance army, near Ohaupo in the Waikato in the late 18th or early 19th centuries, and was reputedly "the largest battle ever fought on New Zealand soil".

The battle was fought between groups comprising many smaller allied hapu and iwi. The attackers, a force of 7,000 to 10,000 warriors, led by a Ngāti Toa chief Pikauterangi, from the Marokopa district of the lower North Island invaded the Waipa District, to restore honour. He was aggrieved over the poor distribution of the kahawai harvest, according to Pei Te Hurinui Jones. This led to the killing of all members of the Ngati Apakura, who were one of the hapu hosting the fish feast. Other accounts say that Pikauterangi took the biggest fish for himself and he was seized and ducked to the point where he nearly drowned. In vengeance he killed Ngato Apakura, cooked their bodies and distributed them for eating amongst Ngati Kauwhata and Ngati Raukawa

This take, or cause, happened about 3 years before the actual battle. During this time Pikauterangi travelled around the lower North Island collecting putting together a large force. He raised about 4,000 men from the Wellington region and a further 3,000 from the East Coast tribes of Ngati Porou and Ngati Kahungunu. This, combined with a separate force of Te Ati Awa, Ngati Ruanui and tribes from the Whanganui who had already been in battle with Ngati Maniapoto. The forces combined at Otorohanga in preparation for the attack on the Ngāti Maniapoto and the Waikato tribes who had allied with Ngati Whatua and Hauraki hapu.

The invaders were first spotted by Wahanui, a Maniapoto chief, just south of Otorohanga. He sent runners to warn the tangata whenua in the central Waikato. Choosing to ambush the attacking force, the Waikato defenders chose Te Mangeo ridge line just south of Lake Ngaroto to launch their attack. The day prior to the battle the two armies drew up before each other. The Tainui army realising their numbers were far fewer at about 1,600(some sources say 3,000), arranged bunches of feathers on top of fern to simulate the head feathers of warriors held in reserve, while other chiefs made war-like speeches in the fern to imaginary warriors.

Te Rauangaanga, Te Wherowhero's father, placed his army on the high ground at the end of a narrow ridge in three groups. The invading force assembled at the foot of the spur. Huahua's force made a frontal attack by charging down the hill. The defenders reeled back, allowing the attackers to envelop them. The second group of the defending forces then rushed down the hill to hit the confused army of Pikauterangi in the flank. The turning point came when Pikauterangi was felled by a blow from Te Rauangaanga. In a panic the invaders tried to retreat along a narrow gap between the ridge and the lake but were ambushed by Tiriwa's men who had been waiting in the bush along the ridge. The Ngāti Toa were forced into the swamplands along the lake margin; some tried to swim the lake but were killed by patrols waiting on the far side.

Many thousands died in the attack. Pei Jones of Tainui, says 16,000 warriors are said to have taken part. Combatants included Waikato-Maniapoto, Ngāti Toa and Ngāti Raukawa. Ngati Raukawa alone are said to have lost 1,600 warriors in battle, including two chiefs. Others came from Taranaki, from Kaipara in Northland, and as far east as Bay of Plenty and Hawke's Bay. So many chiefs died in the battle that it is known as Hingakaka (the fall of parrots), an echo of the traditional mass parrot hunt.

The sacred carving Te Uenuku was lost in the carnage.

Sources differ on the date of the battle, ranging from 1790, to "about 1803" and "about 1807" - with the latter now seeming the most likely.

Aftermath
The victorious Tainui warriors considered following up their decisive victory with a campaign against the tribes that had made war on them. However the tohunga of the Ngati Whatua had a bad dream in which he saw Ngapuhi launching an attack on the Kaipara in their absence. Ngati Whatua returned to their home land and defeated an attempted invasion by Ngapuhi. Other Tainui wanted to continue the war especially against Ngati Raukawa who were seriously weakened and retreated to Maungatautari. Waikato had had enough of fighting for the meantime but in 1810 set out down the west coast on a raid. At Rangikaiwaka on the coast they met a force of Ngati Tama and a Ngati Haua chief, Taiporutu, was killed. As a result of this another war Tainui party set out to gain utu to punish Ngati Tama. The avenging warriors were ambushed and defeated by Ngati Tama and their chief Raparapa. This led to further conflict and was the immediate background to the Ngati Toa forming alliances with Ngati Tama and Ngati Mutanga in the great Ngati Toa upheaval of 1821-22.