Psophia Explained

Psophia is a genus of birds restricted to the humid forests of the Amazon and Guiana Shield in South America. It is the only genus in the family Psophiidae. Birds in the genus are commonly known as trumpeters, due to the trumpeting or cackling threat call of the males.^[1] The three species resemble slightly taller, longer-legged chickens in size and appearance; they measure 45to long and weigh 1to.^[1] They are rotund birds with long, flexible necks and legs, downward-curving bills^[2] and a “hunched” appearance.^[3] Their heads are small, but their eyes are relatively large, making them look inquisitive and "good-natured". The plumage is soft, resembling fur or velvet on the head and neck. It is mostly black, with purple, green, or bronze iridescence, particularly on the wing coverts and the lower neck. In the best-known taxa, the secondary and tertial flight feathers are white, grey, or greenish-black and hairlike, falling over the lower back, which is the same colour. These colours give the three generally accepted species their names.^[1]

Taxonomy and systematics

The genus Psophia was introduced in 1758 by the Swedish naturalist Carl Linnaeus, in the tenth edition of his Systema Naturae, as containing a single species, the grey-winged trumpeter (Psophia crepitans).^{[4] [5]} The genus name is from the Ancient Greek psophos meaning "noise".^[6]

The genus' taxonomy is far from settled; anywhere from three to six species (with varying numbers of subspecies) are recognized by different taxonomic systems.

The International Ornithological Committee's treatment is the most conservative. They recognize three species, two of which have three subspecies:^[7]

• Grey-winged trumpeter, Psophia crepitans
  • P. c. crepitans
  • P. c. napensis
  • P. c. ochroptera
• Pale-winged trumpeter, Psophia leucoptera
• Dark-winged trumpeter, Psophia viridis
  • P. v. viridis
  • P. v. dextralis
  • P. v. obscura

The Clements taxonomy splits P. v. dextralis and adds English names to the subspecies:^[8]

• Gray-winged trumpeter, Psophia crepitans
  • P. c. crepitans (gray-winged)
  • P. c. napensis (Napo)
  • P. c. ochroptera (ochre-winged)
• Pale-winged trumpeter, Psophia leucoptera
• Dark-winged trumpeter, Psophia viridis
  • P. v. viridis (green-backed)
  • P. v. dextralis (dusky-backed)
  • P. v. interjecta (Xingu)
  • P. v. obscura (black-backed)

BirdLife International's Handbook of the Birds of the World (HBW) recognizes six species:^[9]

• Grey-winged trumpeter, Psophia crepitans
  • P. c. crepitans
  • P. c. napensis
• Ochre-winged trumpeter, Psophia ochroptera
• White-winged trumpeter, Psophia leucoptera
• Green-winged trumpeter, Psophia viridis
• Olive-winged trumpeter, Psophia dextralis
  • P. d. dextralis
  • P. d. interjecta
• Black-winged trumpeter, Psophia obscura

Traditionally, only three species of trumpeters have been recognised.^[10] A 2008 review, of the morphology of the dark-winged trumpeter, resulted in the recommendation that it be divided into three species.^[11] A 2010 review of the phylogeny and biogeography of all members of the family resulted in a suggested total of eight species—two in the grey-winged trumpeter complex, two in the pale-winged trumpeter complex, and four in the dark-winged trumpeter complex.^[12]

Behaviour and ecology

Trumpeters fly weakly but run fast; they can easily outrun dogs.^[1] They are also capable of swimming across rivers.^[3] They spend most of the day in noisy flocks, sometimes numbering more than 100, on the forest floor.^[1] They feed on fallen fruit (particularly fruit knocked down by monkeys). They also eat a small amount of arthropods, including ants and flies,^[1] and even some reptiles and amphibians.^[3] At night they fly with difficulty into trees to roost 6mto9mm (20feetto30feetm) above the ground.^[1]

Trumpeters nest in a hole in a tree or in the crown of a palm tree. They lay 2 to 5 eggs with rough, white shells, averaging about 76g.^[1] In the pale-winged trumpeter and the grey-winged trumpeter, groups of adults care for a single clutch.^{[1] [13]}

Relationship with humans

Trumpeters are often used as "guard dogs" because they call loudly when alarmed,^[1] become tame easily, and are believed to be adept at killing snakes. One source states their skill at hunting snakes as a fact,^[3] and the nineteenth-century botanist Richard Spruce gave an account of the friendliness and snake-killing prowess of a tame grey-winged trumpeter. For these reasons, Spruce recommended that England import trumpeters to India.^[14] However, another source says this prowess is "reputed".^[15]

External links

• • Trumpeter videos on the Internet Bird Collection

Notes and References

1. Book: Holyoak, David . Colston, P. R. . 2003 . Trumpeters . Perrins, Christopher . Chris Perrins . The Firefly Encyclopedia of Birds . Firefly Books . 213 . 1-55297-777-3 . https://archive.org/details/fireflyencyclope0000unse/page/213 .
2. Book: Forshaw, Joseph. Archibald, George W.. 1991. Encyclopaedia of Animals: Birds. Merehurst Press. London. 98. 1-85391-186-0.
3. Book: Hilty, Steven L. . Brown, William L. . 1986 . A Guide to the Birds of Colombia . Princeton University Press . 0-691-08371-1 . 134 . 2008-09-19.
4. Book: Linnaeus, Carl . Carl Linnaeus . 1758 . Systema Naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis . 1 . 10th . 154 . Laurentii Salvii . Holmiae (Stockholm) . Latin .
5. Book: Peters . James Lee . James L. Peters . 1934 . Check-List of Birds of the World . 2 . Harvard University Press . Cambridge, Massachusetts . 155 .
6. Book: Jobling, James A. . 2010. The Helm Dictionary of Scientific Bird Names . Christopher Helm . London . 978-1-4081-2501-4 . 322 .
7. Web site: Finfoots, flufftails, rails, trumpeters, cranes, Limpkin . IOC World Bird List . v 12.2 . Gill . F. . Donsker. D.. Rasmussen . P. . August 2022 . August 9, 2022 .
8. Clements, J. F., T. S. Schulenberg, M. J. Iliff, T. A. Fredericks, J. A. Gerbracht, D. Lepage, S. M. Billerman, B. L. Sullivan, and C. L. Wood. 2022. The eBird/Clements checklist of birds of the world: v2022. Downloaded from https://www.birds.cornell.edu/clementschecklist/download/ retrieved November 10, 2022
9. HBW and BirdLife International (2021) Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world. Version 6. Available at: http://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v6_Dec21.zip retrieved August 7, 2022
10. Remsen, J. V. Jr., C. D. Cadena, A. Jaramillo, M. Nores, J. F. Pacheco, J. Pérez-Emán, M. B. Robbins, F. G. Stiles, D. F. Stotz, and K. J. Zimmer. 8 November 2011. A classification of the bird species of South America. South American Classification Committee
11. Oppenheimer . M. . Silveira . L.F. . 2009 . A taxonomic review of the Dark-winged Trumpeter Psophia viridis (Aves: Gruiformes: Psophiidae) . Papéis Avulsos de Zoologia, Universidade de São Paulo . 49 . 41 . 547–555 . 10.1590/S0031-10492009004100001 . free .
12. Ribas . C.C. . Aleixo . A. . Nogueira . A.C.R. . Miyaki . C.Y. . Cracraft . J. . 2011 . A palaeobiogeographic model for biotic diversification within Amazonia over the past three million years . Proceedings of the Royal Society B: Biological Sciences . 279 . 1729 . 681–689 . 10.1098/rspb.2011.1120 . 21795268 . 3248724 .
13. Book: Hilty, Steven L. . 2003 . Birds of Venezuela . Princeton University Press . 279–280 . 0-691-09250-8 .
14. Book: Spruce, Richard . Richard Spruce . Alfred Russel Wallace . Alfred Russel Wallace . 1908 . Notes of a Botanist on the Amazon & Andes . Macmillan . i . 340 . 2008-09-15.
15. Book: Meyer de Schauensee, Rodolphe . Rodolphe Meyer de Schauensee . 1970 . A Guide to the Birds of South America . Livingston Publishing Co . 0-87098-027-0 .