Great cuckoo-dove

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Great cuckoo-dove
photo of pigeon with whitish head, brown body, and blackish outer wings
R. r. reinwardti

Least Concern  (IUCN 3.1)[1]
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Columbiformes
Family: Columbidae
Genus: Reinwardtoena
Species:
R. reinwardti
Binomial name
Reinwardtoena reinwardti
(Temminck, 1824)
Map of New Guinea with green shading showing the great cuckoo-dove's range
  Range (year-round)
Synonyms[2][3][4]
List

The great cuckoo-dove (Reinwardtoena reinwardti) is a

forest edge. It is a large, distinctive pigeon, with a length of 47.5–52.5 cm (18.7–20.7 in) and a weight of 208–305 g (7.3–10.8 oz). In adults, the head, neck, and breast are whitish or blue-grey, the underparts are pale bluish-grey, the upperparts are chestnut-brown, and the outer wings are black. Females differ from males in having more yellowish irises and duller orbital skin
. Juveniles are mainly dull grey-brown, with dirty-white throats and bellies.

The species feeds on fruit and seeds. It is usually seen alone or in pairs, but forms flocks with other

frugivorous birds at fruit trees. It is known to defend fruiting shrubs it is feeding on, an uncommon foraging behaviour among birds. Breeding occurs throughout the year and varies in different parts of its range, seemingly peaking from October to December on New Guinea. Nests are flat or slightly concave platforms made of sticks, moss, roots, and ferns, and contain a single white egg. The species is classified as being of least concern by the International Union for Conservation of Nature
due to its sufficiently large range and stable population.

Taxonomy and systematics

Illustration of great cuckoo-dove
Illustration by Pauline Rifer de Courcelles, ca 1845

The great cuckoo-dove was originally described in 1824 as Columba reinwardtsi by the Dutch zoologist Coenraad Jacob Temminck on the basis of a specimen from Ambon Island, Indonesia, although Temminck erroneously stated that specimen came from Sulawesi.[5] The spelling reinwardtsi was a misprint for reinwardtii, and Temminck himself used the latter spelling in his table of contents;[6] however, other authors have emended the name to reinwardti, and both of these spellings are currently used.[5]

In 1854, the French ornithologist

Biak Island, it is known as Man Wupu.[11]

The great cuckoo-dove is one of three species in the genus Reinwardtoena in the pigeon

allospecies—species with geographically separated populations that can be considered part of the same species complex.[10] It currently has three subspecies recognised by the IOU;[9] some authors also recognise populations from Buru and Obi as distinct subspecies albida and obiensis, respectively.[10] The subspecies recognised by the IOU are:[9]

Description

Photo of an individual of the subspecies griseotincta
R. r. griseotincta

The great cuckoo-dove is a large and long-tailed pigeon, with a length of 47.5–52.5 cm (18.7–20.7 in) and a weight of 208–305 g (7.3–10.8 oz).[5][10] A slight crest on the back of the head gives it a "big-headed" appearance.[12] Birds of the nominate subspecies have the head, neck, and breast blue-grey or cream-white with a pale bluish-grey tinge, turning purplish grey on the back of the neck and upper back. The throat and belly are white, with the latter frequently having a pinkish tinge. The mantle, back, rump, and uppertail-coverts are chestnut-brown. The wings are darker chestnut-maroon, becoming blackish further from the body, and are black below. The underparts are pale bluish-grey. The feet are pink to purplish-red in adults.[5][10]

The outermost rectrices (tail feathers) are greyish-white with black bases and black stripes near the end, while the second-outermost are coloured similarly with black-and-chestnut stripes. The amount of chestnut increases moving inwards, with the central rectrices being almost entirely chestnut with only a small amount of black and grey near the base. Individuals of the nominate subspecies vary clinally (in a gradient across their geographic distribution) in appearance, being darkest in the north and palest in the southwest of their range. In males, the iris is yellowish-white with a red outer ring and the orbital skin is reddish. Females have a more yellowish iris and duller orbital skin.[5][10]

Juvenile great-cuckoo dove, with splotchy brown-and-white plumage
Juvenile R. r. griseotincta on Waigeo

Newly hatched nestlings are pinkish-white. Older nestlings have black bills and feet. Juveniles are dull grey-brown, with dirty-white throats and bellies. The wings are darker than the rest of the body and the

cere and base of the bill are red to purplish-pink and the rest of the bill is yellowish-brown, sometimes with a white tip.[5][10]

The great cuckoo-dove is easily recognised by its large size and distinctive appearance, with the pale underparts contrasting strongly with the richly-coloured upperparts. However, it may still be confused with the "

vinous-tinged, more strongly barred underparts, which contrast less with the upper body.[10]

Vocalisations

Dickcissel male perched on a metal pole singing, with neck stretched and beak open.

Songs and calls
Listen to Reinwardtoena reinwardti on xeno-canto

The great cuckoo-dove has two distinct calls. The first call is a repeated, upslurred "cookuwook cookuwook cookuwook" resembling the call of the brown cuckoo-dove, but slower and more trisyllabic.[10][12] The second call is a series of around 12 deep hoo notes, with the notes getting deeper and faster towards the end;[10] this call has been described as resembling "insane laughter".[12]

Distribution and habitat

The great cuckoo-dove is native to

forest edge; on Biak, it is also known from logged forest, secondary growth, and gallery forests. It is found at elevations of up to 3,380 m (11,090 ft) on mainland New Guinea and up to 1,190 m (3,900 ft) on Karkar Island. On the Maluku Islands, it is found from 115–1,400 m (377–4,590 ft), but is most common above 800 m (2,600 ft).[5][10]

Behaviour and ecology

Adult great cuckoo-dove perched on branch
Great cuckoo-doves (R. r. reinwardti pictured) are generally seen in the canopy.[5][10]

The great cuckoo-dove is usually seen either alone or in pairs in the midstorey or canopy of the forest, although it will form groups of up to ten birds at fruit trees, sometimes joining flocks of other

frugivorous birds.[5][10] It usually flies under the canopy and is rather fast, despite its slow, powerful, and graceful wingbeats.[5][12]

Feeding

The great cuckoo-dove feeds on fruits and small seeds, preferring plants in the family

honeyeaters, and berrypeckers. The dove attacks other birds by "clapping" its wings together loudly, while trying to land on the intruding bird. Defending fruit sources is an uncommon foraging behaviour as it occurs only in certain conditions, requiring intermediate crop sizes and moderate rates of visitation by other birds.[4] The species has also been observed eating soil[14] and several individuals have been found to have stones in their stomachs.[5]

Breeding

Its typical courtship display consists of a deeply undulating flight, with the bird flying sharply upwards, spreading its wings and tail or clapping its wings together at the top of the flight, and descending sharply. Another reported display involves the bird flying up obliquely from a perch and then returning after flying in a wide circle, similar to the displays performed by Macropygia cuckoo-doves. Breeding has been observed year-round and the breeding season varies in different parts of its range.[10] On Buru, nestlings have been observed in February. On New Guinea, breeding seems to occur throughout the year, with nests or young having been observed from March to August and from October to December, and is thought to peak in the latter period. Nests are flat or slightly concave platforms made of sticks, moss, roots, and ferns, lined with fine plant material. They are usually located in a tree or bush at a height of 1.2–5 m (4–20 ft), although some have been observed as high up as 12 m (39 ft) in Pandanus palms. Nests are sometimes made on rocky ledges in caves or river canyons at heights of 2.4–12 m (7.9–39.4 ft).[5][15]

Great cuckoo-doves lay a single white egg, measuring 37.1 mm–40.0 mm × 25.0 mm–26.8 mm (1.46 in–1.57 in × 0.98 in–1.06 in). Captive birds are known to lay multiple clutches if their first clutch fails. Both parents may incubate the egg, which has been observed to hatch after 16 days in captivity and after 22 days in a wild nest. Young are brooded until 13 days after hatching and leave the nest 25 days after hatching. Fledglings begin foraging by themselves 35 days after hatching.[5][15]

Predators and parasites

Known

feather lice Columbicola taschenbergi[16] and Coloceras museihalense.[17] The pygmy eagle is a possible predator.[18]

Status and conservation

The great cuckoo-dove is classified as being of least concern by the International Union for Conservation of Nature due to its sufficiently large range and stable population. Its population size has not been estimated, but it is thought to be generally uncommon throughout its range, although it can be locally common in hilly and mountainous areas.[1] It is fairly common in Papua New Guinea and has a density of 4–6 birds per square kilometre in the Crater Mountain Wildlife Management Area, although it can be uncommon in the northeast of the country. On Seram, it is rare in the lowlands, but rather common at higher elevations.[5]

References

  1. ^
    doi:10.2305/IUCN.UK.2016-3.RLTS.T22690589A93278732.en
    . Retrieved 13 November 2021.
  2. OCLC 988725359
    .
  3. OCLC 12228458. Retrieved 2023-11-27 – via Biodiversity Heritage Library
    .
  4. ^
    JSTOR 1367024
    .
  5. ^
    S2CID 241437480
    , retrieved 2023-11-02
  6. ^ Mees, G. F. (1964). "Notes on two small collections of Birds from new Guinea". Zoologische Verhandelingen. 66 (1): 8–9.
  7. doi:10.5962/bhl.title.132086 – via Biodiversity Heritage Library
    .
  8. ISBN 978-1-4081-3326-2
    .
  9. ^
    Rasmussen, Pamela, eds. (July 2023). "Pigeons"
    . IOC World Bird List Version 13.2. International Ornithologists' Union. Retrieved 24 October 2023.
  10. ^
    OCLC 701718514
    .
  11. ISSN 0007-1595
    .
  12. ^
    ISBN 978-0-691-09562-2
    .
  13. Rasmussen, Pamela, eds. (July 2023). "Species Updates"
    . IOC World Bird List Version 13.2. International Ornithologists' Union. Retrieved 27 November 2023.
  14. ISSN 0952-8369
    .
  15. ^ a b Marcuk, V.; de Boer, D. (2021). "First description of the egg of the enigmatic pied cuckoo-dove, with a literature review on the breeding biology of the congeneric crested and great cuckoo-dove". Notornis. 68 (1): 90.
  16. S2CID 6317945
    .
  17. S2CID 41696201
    .
  18. ISSN 1448-0107. Archived
    from the original on 2021-11-09. Retrieved 2023-11-02.
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