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Zigzag heron

Summary

The zigzag heron (Zebrilus undulatus) is a species of heron in the family Ardeidae, also including egrets and bitterns. It is in the monotypic genus Zebrilus. It is found in Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, and Venezuela. Its natural habitat is subtropical or tropical swamps.

Zigzag heron
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Pelecaniformes
Family: Ardeidae
Subfamily: Botaurinae
Genus: Zebrilus
Bonaparte, 1855
Species:
Z. undulatus
Binomial name
Zebrilus undulatus
(Gmelin, 1789)
Sani Lodge - Ecuador

Taxonomy edit

The zigzag heron was formally described in 1789 by the German naturalist Johann Friedrich Gmelin in his revised and expanded edition of Carl Linnaeus's Systema Naturae. He placed it with the herons, cranes, storks and bitterns in the genus Ardea and coined the binomial name Ardea undulata.[2] Gmelin based his description on the zigzig bittern from Cayenne that had been described by the English ornithologist John Latham in his multi-volume work A General Synopsis of Birds.[3] Latham had in turn based his account on "Le petit butor de Cayenne" that had been described and illustrated in Comte de Buffon's Histoire Naturelle des Oiseaux.[4][5] The zigzag heron is the only species placed in the genus Zebrilus that was introduced in 1855 by the French naturalist Charles Lucien Bonaparte.[6][7] The genus name Zebrilus is a diminutive of the French zèbre meaning "zebra". The specific epithet undulatus is Latin meaning "furnished with wave-like markings".[8] The species is monotypic: no subspecies are recognised.[7]

Description edit

The adult plumage is gray with fine zigzag barring, with a pale underside, standing about 32 centimetres (12+1⁄2 inches) in height. Juveniles have a dark back with a brown head and underside.[9] Due to its appearance it was often assigned to the tiger herons (Tigrisoma and allies). But in fact, it is a true bittern, having like these only 10 rectrices (other Ardeidae have 12) and being unequivocally placed in the bittern lineage by DNA sequence data too. Short legs and necks and cryptic plumage may thus be plesiomorphic among Ardeidae in general.

Distribution and habitat edit

The zigzag heron is a species of the entire Amazon Basin, east of the Andes cordillera, and the five bordering countries on the basin's western periphery, Colombia, Venezuela, Ecuador, Peru, and Bolivia. The range does not extend beyond the Orinoco River basin of Venezuela in the northwest, and in the east-northeast encompasses the Guianas; in the southeast Amazon Basin the range does not extend east of the Tapajós River drainage.

Behaviour edit

They are reclusive birds, staying hidden in thick cover even while foraging.[9]

References edit

  1. ^ BirdLife International (2022). "Zebrilus undulatus". IUCN Red List of Threatened Species. 2022: e.T22697291A211070907. Retrieved 29 July 2022.
  2. ^ Gmelin, Johann Friedrich (1789). Systema naturae per regna tria naturae : secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis (in Latin). Vol. 1, Part 2 (13th ed.). Lipsiae [Leipzig]: Georg. Emanuel. Beer. p. 637.
  3. ^ Latham, John (1785). A General Synopsis of Birds. Vol. 3, Part 1. London: Printed for Leigh and Sotheby. p. 61, No. 22.
  4. ^ Buffon, Georges-Louis Leclerc de (1780). "Le petit butor de Cayenne". Histoire Naturelle des Oiseaux (in French). Vol. 7. Paris: De l'Imprimerie Royale. p. 430.
  5. ^ Buffon, Georges-Louis Leclerc de; Martinet, François-Nicolas; Daubenton, Edme-Louis; Daubenton, Louis-Jean-Marie (1765–1783). "Petit bucor, de Cayenne". Planches Enluminées D'Histoire Naturelle. Vol. 8. Paris: De L'Imprimerie Royale. Plate 763.
  6. ^ Bonaparte, Charles Lucien (1855). "Tableaux synoptiques de l'ordre des hérons". Comptes Rendus Hebdomadaires des Séances de l'Académie des Sciences (in French). 40: 718–733 [723].
  7. ^ a b Gill, Frank; Donsker, David; Rasmussen, Pamela, eds. (August 2022). "Ibis, spoonbills, herons, Hamerkop, Shoebill, pelicans". IOC World Bird List Version 12.2. International Ornithologists' Union. Retrieved 25 November 2022.
  8. ^ Jobling, James A. (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. pp. 413, 396. ISBN 978-1-4081-2501-4.
  9. ^ a b "Zigzag Heron (Zebrilus undulatus) - Peru Aves | Peru Birds". Retrieved 2016-06-30.

External links edit

  Media related to Zebrilus undulatus at Wikimedia Commons   Data related to Zigzag heron at Wikispecies

  • Zigzag heron videos on the Internet Bird Collection
  • Zigzag heron photo gallery VIREO Photo-high res
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  • PhotoArticle - sunbirdtours