Ringed teal
Ringed teal | |
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Male ringed teal | |
Female ringed teal | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Aves |
Order: | Anseriformes |
Family: | Anatidae |
Genus: | Callonetta Delacour, 1936 |
Species: | C. leucophrys
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Binomial name | |
Callonetta leucophrys (Vieillot, 1816)
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The ringed teal (Callonetta leucophrys) is a small
Description
The male and female remain colourful throughout the year, lacking an
The ringed teal breeds in north-west Argentina and Paraguay, also occurring in Bolivia, Brazil and Uruguay. Upon reaching sexual maturity, ringed teals form strong pair bonds. These pair bonds typically last a single breeding season but can last for the lifetime of a pair. A pair bond begins with the male courting the female. In general, courting consists of large amounts of preening, flashing the iridescent green speculum, and swimming in figure eights around the female of interest while vocalizing. Once a pair bond is solidified, mating occurs in the water. Nests are usually created out of hollow holes in tree cavities. The nests are lined with down, and the female tends to be the defender of the nest. The male will defend the female against other males and potential predators throughout their pair bond. Females typically lay 6-12 eggs that are white in colour. The eggs are incubated for an average of 29 days. Both male and female participate incubating the eggs, but one captive study shows that the females were solely responsible for incubation.[citation needed] Hatched chicks are precocial, having a layer of down and effectively walking, functioning, and feeding themselves. Although the chicks hatch with a layer of feather down, it is not immediately waterproof. Until their own oil glands are fully developed, chicks receive their waterproofing oils from contact with their parents' feathers. Both the male and female play a large role in raising and defending the chicks until fledging at 50–55 days old. The male tends to be the most invested and will often be seen following behind separated or slower chicks. Until fledging, the chicks stay in a close group and learn quickly from their parents how to forage, swim efficiently, and avoid predators. The bonded pair is often able to produce two groups of offspring in one breeding season. The male will continue to care for the first group of chicks while the female incubates the second group of eggs. The ringed teal's pair bonding behaviour makes reproduction very efficient. It is possible for a bonded pair to have laid and hatched up to 24 offspring by the end of a breeding season.
Their habitats include tropical, swampy forests and marshy clearings in well-wooded lowlands, as well as secluded pools and small streams. As a predominantly aquatic species, ringed teals eat a variety of aquatic plants and invertebrates, as well as any seeds that can be found. Ringed teals are classified as “dabblers” as opposed to “divers”. Dabblers tend to feed on plant and insect material near the surface of the water, where as divers feed on plants, invertebrates, and fish deeper under the water's surface. Although dabblers may submerge their heads and upper torso while putting their tails up in the air, also known as “up-ending”, they rarely completely submerge themselves and stay under for periods of time, such as the divers do.
Ringed teals can live up to 15 years in captivity, however, an average life span is not known for wild individuals.
Gallery
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Pair of ringed teal
References
- . Retrieved 13 November 2021.
- JSTOR 4089339.