Nene / Hawaiian Goose

Branta sandvicensis

Nēnē / Hawaiian Goose

“ Gaga is a gorgeous singer, and when she sings a great ballad, I get goose bumps. ”

Tony Bennett

Information

Domain: Eukaryota

Kingdom: Animalia

Phylum: Chordata

Class: Reptilia

Order: Anseriformes

Family: Anatidae

Genius: Branta

Species: Branta sandvicensis

Descendant: Branta canadensis

Named by: Nicholas Aylward Vigors

Year Published: 1833

Size: 41 cm tall in height; wingspan in 43-45 inches long in length; 55 - 66 cm long in length; 1.1 kg in weight

Lifespan: 8 to 20+ years

Type: 

Title: 

Pantheon: 

Time Period: Pliocene - Holocene

Alignment: Good

Threat Level: ★★★

Diet: Herbivorous

Elements: Air, sound

Inflicts: n/a

Weaknesses: Electric, ice, dark

Casualties: n/a

Based On: itself

Conservation Status: 

Nēnē (Branta sandvicensis; Hawaiian Kanji: ネーネー/ネエネエ) or simple as Nene or Hawaiian Goose, is the species of goose to Hawaii Islands.

Etymology

The Hawaiian name nēnē comes from its soft call.

Physical Appearance

The nene is a medium-sized goose at 41 cm (16 in) tall. Although they spend most of their time on the ground, they are capable of flight, with some individuals flying daily between nesting and feeding areas. Females have a mass of 1.525–2.56 kg (3.36–5.64 lb), while males average 1.695–3.05 kg (3.74–6.72 lb), 11% larger than females.


Adult males have a black head and hindneck, buff cheeks and heavily furrowed neck. The neck has black and white diagonal stripes. Aside from being smaller, the female Nene is similar to the male in colouration. The adult's bill, legs and feet are black. It has soft feathers under its chin. Goslings resemble adults, but are a duller brown and with less demarcation between the colors of the head and neck, and striping and barring effects are much reduced.

Abilities

Though Hawaiian geese are capable of flight, for the most part they spend their time on the ground.

Ecology

The breeding season of the nene, from August to April, is longer than that of any other goose; most eggs are laid between November and January. Unlike most other waterfowl, the nene mates on land. The nene is a herbivore that will either graze or browse, depending on the availability of vegetation. Food items include the leaves, seeds, fruit, and flowers of grasses and shrubs. The optimal habitat during the breeding and molting seasons appears to be lowland grassland, including exotic grassland, where there is an abundance of high protein food, adjacent to natural scrubland nesting areas.


The species originally declined as a result of hunting by Polynesian and non-Polynesian people, habitat loss and the introduction of mammalian predators or eaten by Hawaiian guardians like Mo'o. The introduced small Indian mongoose occurs on all range islands except Kaua‘i, and is the main predator of eggs. Eggs are also predated by Black, Norway and Pacific Rats (USFWS 2004). Dogs, mongooses and occasionally cats predate on goslings, feral pigs trample nests and predate eggs, young and adults.


The habitat has been restored at key sites through mowing, controlled grazing, control of alien plants and reintroduction of native plants. In the absence of continued habitat management and/or predator controls, its area of occupancy, area and quality of habitat, and population size would all likely decline. For these reasons, the species is listed as Near Threatened.

Behavior

Although the immediate family is the fundamental unit of the Hawaiian goose, the nene is sociable and forms flocks or gaggles of up to 30 birds. Although the geese can fly, it seems to prefer running because its legs and feet were designed to sprint on volcanic terrain.

Distribution and Habitat

The nene is an inhabitant of shrubland, grassland, coastal dunes, and lava plains, and related anthropogenic habitats such as pasture and golf courses from sea level to as much as 2,400 m (7,900 ft). Nene is endemic to the Hawaiian Islands (U.S.A.). Following an extensive reintroduction programme beginning in the 1960s, reintroduced populations are now also found on Maui, Kauai and Molokai Islands. For some time, all populations were dependent on continued releases of captive birds to persist.


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Lore

This animal was descendants of the Canada goose in ancient times when Hawaiian islands shortly formed due to remote isolation from terrestrial faunas in Hawaii at Cretaceous to Pliocene.

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