Turquoise-browed motmot

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Turquoise -browed motmot
Turquoise-browed Motmot (16423222357).jpg
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Coraciiformes
Family: Momotidae
Genus: Eumomota
P.L. Sclater, 1858
E. superciliosa
Binomial name
Eumomota superciliosa
(Sandbach, 1837)

The turquoise-browed motmot (Eumomota superciliosa) also known as Torogoz, is a colourful, medium-sized bird of the motmot family, Momotidae. It inhabits Central America from south-east Mexico (mostly the Yucatán Peninsula), to Costa Rica, where it is common and not considered threatened. It lives in fairly open habitats such as forest edge, gallery forest and scrubland. It is more conspicuous than other motmots, often perching in the open on wires and fences. From these perches it scans for prey, such as insects and small reptiles. White eggs (3–6) are laid in a long tunnel nest in an earth bank or sometimes in a quarry or fresh-water well. Its name originates from the turquoise color of its brow. It was first declared as the official national bird of El Salvador in 1999, where the bird is known as Torogoz.


A Torogoz in Joya de Ceren Mayan ruins in El Salvador ES 05 2012 Torogoz in Joya de Ceren 1465.jpg
A Torogoz in Joya de Ceren Mayan ruins in El Salvador

The bird is approximately 34 cm (13 in) long and weighs about 65 g (2.3 oz). It has a mostly grey-blue body with a rufous back and belly. There is a bright blue strip above the eye and a blue-bordered black patch on the throat. The flight feathers and upperside of the tail are blue. The tips of the tail feathers are shaped like rackets and the bare feather shafts are longer than in other motmots. Although it is often said that motmots pluck the barbs off their tail to create the racketed shape, this is not true; the barbs are weakly attached and fall off due to abrasion with substrates and with routine preening. [2]

Unlike most bird species, where only males express elaborate traits, the turquoise-browed motmot expresses the extraordinary racketed tail in both sexes. Research indicates that the tail has evolved to function differently for the sexes. Males apparently use their tail as a sexual signal, as males with longer tails have greater pairing success and reproductive success. [3] In addition to this function, the tail is used by both sexes in a wag-display, whereby the tail is moved back-and-forth in a pendulous fashion. [4] The wag-display is performed in a context unrelated to mating: both sexes perform the wag-display in the presence of a predator, and the display is thought to confer naturally selected benefits by communicating to the predator that it has been seen and that pursuit will not result in capture. This form of interspecific communication is referred to as a pursuit-deterrent signal. [5]

The call is nasal, croaking and far-carrying.

The turquoise-browed motmot is a well-known bird in its range and has been chosen as the national bird of both El Salvador and Nicaragua. [6] [7] It has acquired a number of local names including guardabarranco ("ravine-guard") in Nicaragua, Torogoz in El Salvador (based on its call) and pájaro reloj ("clock bird") in the Yucatán, based on its habit of wagging its tail like a pendulum. In Costa Rica it is known as momoto cejiceleste or the far-less flattering pájaro bobo ("foolish bird"), owing to its tendency to allow humans to come very near it without flying away.

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  1. BirdLife International (2012). "Eumomota superciliosa". IUCN Red List of Threatened Species . IUCN. 2012. Retrieved 26 November 2013.
  2. Murphy, Troy G. (2007). "Lack of melanized keratin and barbs that fall off: how the racketed tail of the turquoise-browed motmot Eumomota superciliosa is formed". Journal of Avian Biology . Nordic Society Oikos. 38: 139–143. doi:10.1111/j.2007.0908-8857.04055.x.
  3. Murphy, Troy G. (2007). "Racketed tail of the male and female turquoise-browed motmot: male but not female tail length correlates with pairing success, performance, and reproductive success". Behavioral Ecology and Sociobiology . Springer-Verlag. 61 (6): 911–918. doi:10.1007/s00265-006-0320-z.
  4. Murphy, Troy G. (2006). "Predator-elicited visual signal: why the turquoise-browed motmot wag-displays its racketed tail". Behavioral Ecology . International Society for Behavioral Ecology. 17 (4): 547–553. doi: 10.1093/beheco/arj064 .
  5. Murphy, Troy G. (2007). "Dishonest 'preemptive' pursuit-deterrent signal? Why the turquoise-browed motmot wags its tail before feeding nestlings". Animal Behaviour . Springer-Verlag. 73 (6): 965–970. doi:10.1016/j.anbehav.2006.10.020.
  6. "Decreto Legislativo No 735 del 21 de octubre de 1999" (PDF). Diario Oficial (in Spanish). San Salvador: Imprenta Nacional de El Salvador. 345 (216): 6. 19 November 1999. Retrieved 22 July 2017.
  7. "Ley No. 795 que declara al guardabarranco, ave nacional de Nicaragua". Diario Oficial (in Spanish). Managua: La Gaceta (118). 25 June 2012. Retrieved 22 July 2017.