''Chiroxiphia'' is one of several
genera
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclat ...
of
manakin
The manakins are a Family (biology), family, Pipridae, of small Tyranni, suboscine passerine birds. The group contains some 54 species distributed through the American tropics. The name is from Middle Dutch ''mannekijn'' "little man" (also the so ...
s, small song birds of
South
South is one of the cardinal directions or Points of the compass, compass points. The direction is the opposite of north and is perpendicular to both east and west.
Etymology
The word ''south'' comes from Old English ''sūþ'', from earlier Pro ...
and
Central America
Central America ( es, América Central or ) is a subregion of the Americas. Its boundaries are defined as bordering the United States to the north, Colombia to the south, the Caribbean Sea to the east, and the Pacific Ocean to the west. ...
.
The male
plumage
Plumage ( "feather") is a layer of feathers that covers a bird and the pattern, colour, and arrangement of those feathers. The pattern and colours of plumage differ between species and subspecies and may vary with age classes. Within species, ...
is a striking combination of black and bright blue. The crown is red, except in the yellow-crowned ''C. pareola regina''. Females are comparably dull olive-greenish overall. Juveniles of both sexes resemble the adult female. As the male plumage takes several years to complete, individuals showing a level of intermediacy between full adult male and female-like juveniles are commonly seen (in particular female-plumaged birds with red, or yellow in ''C. pareola regina'', crowns).
Manakins of the genus ''Chiroxiphia'' have an unusual
mating system
A mating system is a way in which a group is structured in relation to sexual behaviour. The precise meaning depends upon the context. With respect to animals, the term describes which males and females mating, mate under which circumstances. Reco ...
, based on female
mate choice
Mate choice is one of the primary mechanisms under which evolution can occur. It is characterized by a "selective response by animals to particular stimuli" which can be observed as behavior.Bateson, Paul Patrick Gordon. "Mate Choice." Mate Choic ...
. In order to mate successfully, males have to form partnerships with another male. The two males co-operate in an elaborate courtship dance, and sing a joint
song
A song is a musical composition intended to be performed by the human voice. This is often done at distinct and fixed pitches (melodies) using patterns of sound and silence. Songs contain various forms, such as those including the repetitio ...
(called a ''duet'') at one of many traditionally fixed mating sites; the area where mating takes place can be described as an exploded
lek
Lek or LEK may refer to:
* Lek mating, mating in a lek, a type of animal territory in which males of a species gather
* Albanian lek, the currency of Albania
* Lek (magazine), a Norwegian softcore pornographic magazine
* Lek (pharmaceutical comp ...
. In some species such as the
blue manakin, these partnerships typically consist of three males. Females attend a number of these courtship sites, observing the male displays and eventually allow a male at one of the sites to mate.
The males can typically be designated alpha and beta, since there is a clear
dominance relationship between them. There is only ever one alpha male, but, depending on species, there may be one or two beta males. Beta males are sometimes sub-adults - easily recognized, as their plumage retain female-like characters. Only the alpha male is ever seen to mate with the female.
As in other manakins, males play no part in the care of the young.
Species
References
*Trainer, J. M., McDonald, D. B., & Learn, W. A. (2002). The development of coordinated singing in cooperatively displaying long-tailed manakins. ''Behavioral Ecology, 13'', 65–69.
Bird genera
Taxa named by Jean Cabanis
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