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Overview

Comprehensive Description

Summary

"A brown long-necked duck, it is a nocturnal feeder, but seen in flocks during the day in paddy fields and lakes."
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Miscellaneous Details

The birds keep wheeling over a tank long after most of the other ducks have departed as a result of gunfire.
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Distribution

Range

Indian subcontinent to SE Asia and Greater Sundas.
  • Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2014. The eBird/Clements checklist of birds of the world: Version 6.9. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/

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Physical Description

Morphology

"A small chestnut coloured duck, confusable with no other of the same size. Sexes alike. Shrill whistling notes uttered during the feeble, flapping flight."
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Size

Smaller than the domestic cluck.
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Ecology

Habitat

Habitat and Ecology

Systems
  • Terrestrial
  • Freshwater
  • Marine
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General Habitat

"Seen in small flocks, on weedy tanks."
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Life History and Behavior

Behavior

Behaviour

"The Lesser Whistling Teal is a common and familiar resident Indian species found on all reed and floating vegetation — covered tanks and jheel and often also in swampy paddy fields. It loves such as have trees growing in or around them, on the branches of which it perches freely. It avoids open water and rivers. The birds move about a good deal locally under stress of natural conditions such as drought and floods. They usually keep in small parties of 10 to 15, but occasionally much larger flocks are met with. They have a feeble, flapping flight, rather reminiscent of the Jacanas', which is accompanied by constant, shrill, wheezy whistling notes. Their food consists of snails, worms, frogs, fish, etc., as well as tender green shoots of grass, paddy and the like, and grain. The birds walk and dive well. They are poor eating and on that account seldom shot by sportsmen."
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Reproduction

"The season ranges from June to October in India and Burma, February to August in Ceylon, its commencement depending upon the break of the S.-W. Monsoons. Although many birds build nests of leaves, rushes and grass on the ground among thorny scrub, reeds, etc., most nests are found in trees, often well away from water. They are twig structures situated either in natural hollows in the trunks or in the forks of the larger branches. Sometimes old nests of crows, kites and herons are utilised. Seven to 12 eggs form the normal clutch, the commonest number being 10. They are milk-white in colour, but become stained brownish during incubation, which seems to be undertaken by the female alone."
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Molecular Biology and Genetics

Molecular Biology

Barcode data: Dendrocygna javanica

The following is a representative barcode sequence, the centroid of all available sequences for this species.


There are 3 barcode sequences available from BOLD and GenBank.

Below is a sequence of the barcode region Cytochrome oxidase subunit 1 (COI or COX1) from a member of the species.

See the BOLD taxonomy browser for more complete information about this specimen and other sequences.

AATCGATGATTATTCTCCACCAACCACAAAGACATCGGAACTCTATACCTCATCTTTGGAGCATGAGCAGGAATAATTGGCACTGCACTT---AGCTTGCTGATCCGCGCAGAATTGGGACAACCTGGAACTCTTCTAGGGGAT---GACCAAATCTACAACGTAATCGTCACGGCCCACGCCTTCGTAATAATCTTCTTTATAGTCATGCCCATTATAATCGGGGGCTTCGGAAACTGACTAGTTCCCCTAATA---ATTGGCGCCCCTGACATGGCATTTCCCCGGATAAACAACATAAGCTTCTGACTCCTGCCACCATCGTTCCTCCTTCTCCTAGCATCATCCACTGTAGAAGCCGGTGCTGGCACAGGATGAACCGTATACCCACCTTTAGCGGGAAACCTAGCCCACGCTGGGGCATCAGTAGACCTA---GCTATTTTCTCTCTCCACTTAGCTGGTGTCTCTTCCATCCTAGGGGCAATTAACTTCATTACCACAGCTATTAACATAAAACCCCCCGCACTTTCACAATACCAAACCCCCCTGTTCGTTTGATCTGTACTAATCACTGCCATCCTACTCCTCCTATCACTACCCGTACTTGCTGCC---GGCATTACAATGTTACTAACGGACCGAAACCTAAACACCACATTCTTCGACCCAGCAGGAGGAGGAGACCCAATCCTGTACCAACATCTATTTTGATTCTTCGGACATCCAGAGGTGTATATCCTAATTTTACCAGGGTTCGGAATCATCTCACACGTAGTTACCTACTACTCCGGTAAAAAA---GAACCATTTGGCTACATAGGAATAGTATGGGCTATACTATCCATTGGCTTCCTAGGGTTCATCGTATGAGCCCACCACATGTTCACCGTAGGAATAGACGTTGACACCCGAGCCTACTTCACATCAGCCACTATAATCATTGCCATTCCCACTGGCATCAAAGTTTTCAGCTGACTG---GCTACACTTCACGGAGGC---ACAATTAAATGGGATCCCCCAATGCTTTGAGCCCTGGGGTTCATTTTCCTCTTCACCATCGGAGGATTAACTGGAATTGTCCTAGCAAACTCCTCCCTTGACATCGCTCTACACGACACGTACTATGTCGTAGCCCACTTCCACTACGTA---CTCTCCATAGGAGCTGTCTTTGCAATTCTAGCAGGATTCACCCACTGATTCCCACTCCTTACTGGGTTCACCTTACACCAGACATGAGCAAAAGCCCACTTCGGGGTAATATTCACTGGAGTAAACCTAACATTTTTCCCACAACATTTCCTAGGACTAGCAGGAATACCCCGG---CGATACTCAGACTACCCCGATGCCTATACA---ATATGAAACACTGTATCCTCTATTGGCTCCCTAATCTCAATAGTAGCAGTAATCATGCTGCTCTTTATTATCTGGGAGGCCTTCTCAGCTAAACGTATGGTC---CTACAACCAGAACTAACAGCTACAAAC
-- end --

Download FASTA File

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Statistics of barcoding coverage: Dendrocygna javanica

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 2
Specimens with Barcodes: 2
Species With Barcodes: 1
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2012

Assessor/s
BirdLife International

Reviewer/s
Butchart, S. & Symes, A.

Contributor/s

Justification
This species has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). Despite the fact that the population trend appears to be decreasing, the decline is not believed to be sufficiently rapid to approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size is very large, and hence does not approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.

History
  • Least Concern (LC)
  • Least Concern (LC)
  • Least Concern (LC)
  • Lower Risk/least concern (LR/lc)
  • Lower Risk/least concern (LR/lc)
  • Lower Risk/least concern (LR/lc)
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