Saddleback (bird)

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Saddleback
Saddleback tiritiri.jpg
North Island saddleback (Philesturnus rufusater)
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Callaeidae
Genus: Philesturnus
I. Geoffroy Saint-Hilaire, 1832
Type species
Sturnus carunculatus
Gmelin, 1789
Species

P. rufusater
P. carunculatus

The saddlebacks or tīeke (Māori) are two species of New Zealand birds of the family Callaeidae. Both are glossy black with a chestnut saddle. Their taxonomic family is also known as that of the (New Zealand) "wattlebirds" and includes the two species of kōkako, and the extinct huia. All members of the family Callaeidae have coloured fleshy wattles on either side of the beak; the saddlebacks' are a vivid red.

Contents

Taxonomy

North Island saddleback with neck arched, showing wattles Vigilant saddleback.jpg
North Island saddleback with neck arched, showing wattles

The genus Philesturnus was introduced in 1832 by the French zoologist Isidore Geoffroy Saint-Hilaire to accommodate a single species, the South Island saddleback, which is therefore the type species of the genus. [1] [2] The name combines the honeyeater genus Philedon and the starling genus Sturnus . [3]

The saddleback's common name derives from the demarcated brown plumage on its back, which resembles a saddle. The Māori name, tīeke, is onomatopoeic and comes from one of the species' calls: "ti-e-ke-ke-ke-ke".

There are two species: [4]

The saddlebacks appear to be a remnant of an early expansion of passerines in New Zealand, and are two of five New Zealand wattlebirds of the family Callaeidae, the others being the extinct huia, the endangered North Island kōkako, and the possibly extinct South Island kōkako. New Zealand wattlebirds have only one close relative: the stitchbird. [5]

Behaviour

Saddleback looking for insects Saddleback in dead ponga.jpg
Saddleback looking for insects

Saddlebacks are larger than other arboreal insectivorous birds in New Zealand forests. They measure as much as 25 cm (10 in) in length and can weigh up to 75 grams (somewhat larger than a common blackbird). They will tear pieces of bark from tree trunks to find insects beneath, which are then dispatched and consumed with their short, robust, and unusually strong beaks. They will also feed on the ground in leaf litter. However, their diet is not strictly insectivorous: they have been observed eating fruit and drinking nectar. Like their close relative the kōkako, saddlebacks are poor fliers and mostly bound from branch to branch, but can fly short distances.

Territorial birds, the saddlebacks display antagonistic behaviour in this regard on three levels of intensity, singing out at dawn to mark their territory, making threat displays, which can include head bobbing, tail fanning, and warbling (during which the wattles dilate). When a direct challenge is made to a bird's territory, fights can occur in which combatants attempt to grapple with the wattles of their foe. Saddlebacks are notoriously fearless and noisy, and frequently enchanted 19th-century European naturalists with their behaviour.

Saddlebacks nest in epiphytes, in tree-fern crowns, and in holes in tree trunks. They have a tendency to nest near the ground, and their fledglings will leave the nest to hop around in a typically noisy fashion while they build wing strength.

Saddlebacks and people

Place in Māori culture

Saddlebacks traditionally held a strong place in Māori belief systems: their cries were viewed as good omens when they came from the right, and bad omens if from the left. Their cheeky nature is reflected in the Māori legend that tells of how the birds acquired its distinctive chestnut coloured saddle. Fresh from his battle to ensnare the sun, a thirsty Māui (a virtual demi-god in Māori folklore) asked the tīeke to bring him some water. The bird rudely pretended not to hear his request, at which Māui, becoming angry, seized it with his still fiery hand, leaving a brown scorch mark across its back.

Decline, present day conservation and recovery

Their breeding behaviour (nesting near the ground and fledglings hopping noisily around on the ground) make them especially vulnerable to predation from introduced mammals, including mustelids, brown rats and ship rats. This resulted in both species swiftly disappearing from the New Zealand mainland. By the beginning of the 20th century, both species were confined to a respective island; in the far north, Hen Island off Northland, and in the far south, Taukihepa / Big South Cape Island off Stewart Island / Rakiura.

Rats arrived on Big South Cape Island in 1963, accidentally introduced as they escaped from the boats of visiting muttonbirders. A swift rescue operation by the New Zealand Wildlife Service (now the Department of Conservation) barely saved the species from extinction, while the rats' predation soon condemned to extinction the local populations of the South Island snipe, bush wren and greater short-tailed bat.

Saddleback have since been relocated to island nature reserves around New Zealand, and also to mainland fenced sanctuaries. Since roughly 2015, sporadic sightings and evidence of breeding has been confirmed in Polhill Reserve, which neighbours the fenced Zealandia wildlife sanctuary. These have been the first sightings on New Zealand's un-fenced mainland since the bird was declared extinct on the mainland in 1910. [6]

The recovery of the saddleback is considered by many to be one of New Zealand's greatest conservation success stories.

Related Research Articles

<span class="mw-page-title-main">Callaeidae</span> Family of birds

Callaeidae is a family of passerine birds endemic to New Zealand. It contains three genera, with five species in the family. One species, the huia, became extinct early in the 20th century, while the South Island kōkako is critically endangered and may be extinct.

<span class="mw-page-title-main">Huia</span> Extinct species of bird

The huia is an extinct species of New Zealand wattlebird, endemic to the North Island of New Zealand. The last confirmed sighting of a huia was in 1907, although there was another credible sighting in 1924.

<span class="mw-page-title-main">Kapiti Island</span> Island off the Kāpiti Coast of New Zealand

Kapiti Island, sometimes written as Kāpiti Island, is an island nature reserve located 5.6 km (3 mi) off the west coast of the lower North Island of New Zealand and within the Kāpiti Coast District. Parts of the island were previously farmed, but it is now a predator-free sanctuary for endemic birds, including many endangered birds. The island is 10 km (6.2 mi) long, running southwest/northeast, and roughly 2 km (1.2 mi) wide, being more or less rectangular in shape, and has an area of 19.65 km2 (7.59 sq mi).

<span class="mw-page-title-main">Tiritiri Matangi Island</span> Island located in the Hauraki Gulf of New Zealand

Tiritiri Matangi Island is located in the Hauraki Gulf of New Zealand, 3.4 km (2.1 mi) east of the Whangaparāoa Peninsula in the North Island and 30 km (19 mi) north east of Auckland. The 2.2 km2 (1 sq mi) island is an open nature reserve managed by the Supporters of Tiritiri Matangi Incorporated, under the supervision of the Department of Conservation and is noted for its bird life, including takahē, North Island kōkako and kiwi. It attracts between 30,000 and 32,000 visitors a year, the latter figure being the maximum allowed by the Auckland Conservation Management Strategy.

<span class="mw-page-title-main">Kōkako</span> Genus of birds

Kōkako are two species of forest bird in the genus Callaeas which are endemic to New Zealand, the endangered North Island kōkako and the presumed extinct South Island kōkako. They are both slate-grey with wattles and have black masks. They belong to a family containing five species of New Zealand wattlebirds, the other three being two species of tieke (saddleback) and the extinct huia. Previously widespread, kōkako populations throughout New Zealand have been decimated by the predations of mammalian invasive species such as possums, stoats, cats and rats, and their range has contracted significantly. In the past this bird was called the New Zealand crow. It is not closely related to the crow, but looks like one from a distance.

<span class="mw-page-title-main">Resolution Island (New Zealand)</span> Island in New Zealands Fiordland region

Resolution Island or Tau Moana (Māori) is the largest island in the Fiordland region of southwest New Zealand, covering a total of 208 km2 (80 sq mi). It is the country's seventh largest island, and the second largest uninhabited island. Resolution Island is separated from the mainland of the South Island by Tamatea / Dusky Sound, Te Puaitaha / Breaksea Sound, and Acheron Passage. The island is part of the Fiordland National Park.

<span class="mw-page-title-main">Hen and Chicken Islands</span> Archipelago off the coast of New Zealand

The Hen and Chicken Islands lie to the east of the North Auckland Peninsula off the coast of northern New Zealand. They lie 12 kilometres (7.5 mi) east of Bream Head and 40 kilometres (25 mi) south-east of Whangārei with a total area of 8.44 km2 (3.26 sq mi).

<span class="mw-page-title-main">Zealandia (wildlife sanctuary)</span> Protected natural area in Wellington, New Zealand

Zealandia, formerly known as the Karori Wildlife Sanctuary, is a protected natural area in Wellington, New Zealand, the first urban completely fenced ecosanctuary, where the biodiversity of 225 ha of forest is being restored. The sanctuary was previously part of the water catchment area for Wellington, between Wrights Hill and the Brooklyn wind turbine on Polhill.

<span class="mw-page-title-main">Conservation in New Zealand</span>

Conservation in New Zealand has a history associated with both Māori and Europeans. Both groups of people caused a loss of species and both altered their behaviour to a degree after realising their effect on indigenous flora and fauna.

<span class="mw-page-title-main">Stitchbird</span> Species of bird

The stitchbird or hihi is a honeyeater-like bird endemic to the North Island and adjacent offshore islands of New Zealand. Its evolutionary relationships have long puzzled ornithologists, but it is now classed as the only member of its own family, the Notiomystidae. It is rare, being extirpated everywhere except Little Barrier Island, but has been reintroduced to two other island sanctuaries and four locations on the North Island mainland. Current population estimations for mature individuals in the wild are 2,500–3,400.

<span class="mw-page-title-main">Anchor Island</span> Island of New Zealand

Anchor Island is an island in Dusky Sound in Fiordland.

<span class="mw-page-title-main">Wattle (anatomy)</span> Fleshy growth on the head or neck of a bird

A wattle is a fleshy caruncle hanging from various parts of the head or neck in several groups of birds and mammals. Caruncles in birds include those found on the face, wattles, dewlaps, snoods, and earlobes. Wattles are generally paired structures, but may occur as a single structure when it is sometimes known as a dewlap. Wattles are frequently organs of sexual dimorphism. In some birds, caruncles are erectile tissue and may or may not have a feather covering.

Tieke, or saddlebacks, are two species of New Zealand bird of the family Callaeidae.

<span class="mw-page-title-main">Breaksea Island (Fiordland)</span> Island in New Zealand

Breaksea Island is a rugged 1.6 km2 (1 sq mi) island in the southwest of New Zealand, and is part of Fiordland National Park. Its highest point is 350 m (1,148 ft) asl and it lies about 2 km (1.2 mi) from the mainland in the entrance to Te Puaitaha / Breaksea Sound, north of the much larger Resolution Island. It is covered in temperate rainforest and was the site of one of the first successful campaigns to eradicate rats from a sizeable island.

<span class="mw-page-title-main">North Island kōkako</span> Species of bird

The North Island kōkako is an endangered forest bird which is endemic to the North Island of New Zealand. It is grey in colour, with a small black mask. It has blue wattles. Because of its wattle, the bird is sometimes locally called the blue-wattled crow, although it is not a corvid.

<span class="mw-page-title-main">South Island kōkako</span> Species of bird

The South Island kōkako is a forest bird endemic to the South Island and Stewart Island of New Zealand. Unlike its close relative, the North Island kōkako, it has largely orange wattles, with only a small patch of blue at the base, and was also known as the orange-wattled crow. The last accepted sighting in 2007 was the first considered genuine since 1967, although there have been several other unauthenticated reports -. Following the 2007 reports, the Department of Conservation reclassified the species from extinct to data deficient.

<span class="mw-page-title-main">North Island saddleback</span> Species of bird endemic to the North Island of New Zealand

The North Island saddleback is a forest-dwelling passerine bird species endemic to the North Island of New Zealand. It was once considered conspecific with the South Island saddleback. The IUCN lists the species as Near Threatened, while it is listed as a "recovering" species in the New Zealand Threat Classification System. Saddlebacks are known in Māori as tīeke.

<span class="mw-page-title-main">South Island saddleback</span> Species of bird

The South Island saddleback or tīeke is a forest bird in the New Zealand wattlebird family which is endemic to the South Island of New Zealand. Both the North Island saddleback and this species were formerly considered conspecific. The Department of Conservation currently has the South Island saddleback listed as At Risk--Declining.

<span class="mw-page-title-main">Sanctuary Mountain Maungatautari</span> Protected wildlife sanctuary in Waikato, New Zealand

Sanctuary Mountain Maungatautari, is a protected natural area in Waikato Region, New Zealand where the biodiversity of 3,400 ha of forest is being restored. The sanctuary covers the mountain peak, Maungatautari.

References

  1. Geoffroy Saint-Hilaire, Isidore (1832). "Considérations sur les caractères employés en ornithologie pour la distinction des genres, des familles et des ordres, et détermination de plusieurs genres nouveaux". Nouvelles Annales du Muséum d'Histoire Naturelle (in French). 1: 390–392.
  2. Mayr, Ernst; Greenway, James C. Jr, eds. (1962). Check-List of Birds of the World. Vol. 15. Cambridge, Massachusetts: Museum of Comparative Zoology. p. 158.
  3. Jobling, James A. (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. p. 302. ISBN   978-1-4081-2501-4.
  4. Gill, Frank; Donsker, David; Rasmussen, Pamela, eds. (January 2023). "Australasian babblers, logrunners, satinbirds, berrypeckers, wattlebirds, whipbirds, jewel-babblers, quail-thrushes". IOC World Bird List Version 13.1. International Ornithologists' Union. Retrieved 26 March 2023.
  5. Ewen, John G; Flux, Ian; Ericson, Per GP (2006). "Systematic affinities of two enigmatic New Zealand passerines of high conservation priority, the hihi or stitchbird Notiomystis cincta and the kokako Callaeas cinerea (fulltext)" (PDF). Molecular Phylogenetics and Evolution. 40 (1): 281–84. doi:10.1016/j.ympev.2006.01.026. PMID   16527495 . Retrieved 16 July 2016.
  6. Wannan, Olivia (28 December 2015). "Saddleback youngster spotted outside Zealandia". Stuff.co.nz. Retrieved 5 February 2018.