There are only living individuals of the critically endangered kākāpō, a large, flightless parrot native to New Zealand. Every known living kākāpō, except some young chicks, has been given a name by officials of the Kākāpō Recovery Programme. Many of the older birds were given English-language names, but more recent chicks have been given Māori names. Some kākāpō, such as Richard Henry and Moorhouse, are named after people who have provided assistance to the preservation efforts. A kākāpō interactive family tree is available. Recent population changes After a good breeding year in 2002, the population remained at 86 until 2004, when three two-year-old female kākāpō died from erysipelas caused by the soil bacterium Erysipelothrix rhusiopathiae. Four chicks survived from the 2005 breeding season. The male Gunner died of aflatoxicosis during the New Zealand winter of 2005, bringing the population back to 86. In April 2008, the population grew to 93 with the hatching of seven chicks, then fell to 92 due to the death of adult Bill. One of the seven 2008 chicks died soon after hatching, bringing the total down to 91, and on 28 October 2008, male Lee died, bringing the population down to 90. Male Rangi was rediscovered in February 2009 after spending 21 years living on Codfish Island. The 2009 breeding season resulted in 33 chicks (20 male and 13 female), bringing the population up to 124. A number of older birds died during 2010, followed by the significant loss of the only remaining Fiordland kākāpō, Richard Henry, announced during January 2011. His Fiordland genes survive through his three progeny. The breeding season in 2011 produced 11 chicks (eight females, three male), which all survived, bringing the population to 131. However, the deaths of several birds followed and with no breeding in 2012, the population dropped to 124. The hatching of six eggs in May 2014 (the first hatchings since 2011) then increased the total population to 130 living individuals. Forty-seven chicks hatched in the 2016 nesting season, making it a "record breeding season". As of July 2016, 34 of them had survived. A record 71 chicks were born and raised to juvenile range in the 2018/2019 breeding season. Department of Conservation, Kākāpō operations manager Deidre Vercoe was quoted saying '"The kākāpō population has grown 70% in the last 5 years and we're starting to reach carrying capacity on the two main breeding islands: Anchor and