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Behavioural Monitoring and Threats Assessment of Ibisbill (Ibidorhynchastruthersii) in the Wintering Site, East Rapti River, Hetauda, Nepal

Received: 21 August 2023    Accepted: 11 September 2023    Published: 8 January 2024
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Abstract

Ibisbill is a resident breeder in the Himalayas and winters in the lower Terai of Nepal. It has been nationally assessed as Endangered due to disturbance, hunting, habitat loss and climate change. We did a field survey in the East Rapti River from Late November 2022 to Mid-March 2023 to assess the population status, behaviour and threats in the Ibisbill wintering ground. Observations on the behaviour were made at three selected sites, each of 1.5 km transects. Household survey was conducted with 50 respondents using structured and semi-structured questionnaires to assess the prominent threats along with direct observations. A total of six Ibisbills were recorded during the study period in the wintering ground. Ibisbills fed on both terrestrial and aquatic invertebrates including stonefly, mayfly and caddisfly larvae. Feeding and Foraging accounted for 55% of the total activity time in winter followed by Resting (22%). During the survey, the bird was quite inactive and solitary as well as found to be good swimmers, preferring to cross rivers by swimming rather than flying. People in the vicinity of the East Rapti River reported that extraction of stones and boulders, pollution and disturbances by human activities were major threats to Ibisbill. We recommend further monitoring of the species and protection of the wintering grounds from excessive anthropogenic activities.

Published in American Journal of Zoology (Volume 7, Issue 1)
DOI 10.11648/j.ajz.20240701.11
Page(s) 1-5
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Population, Activities, Observations, Foraging, Threats, Ibisbill

References
[1] BCN and DNPWC. (2011). The State of Nepal’s Birds 2010. Bird Conservation Nepal and Department of National Parks and Wildlife Conservation, Kathmandu.
[2] BirdLife International. (2021). Species factsheet: Ibidorhynchastruthersii. Downloaded from http://www.birdlife.orgon 15/08/2021
[3] Grimmett, R., Inskipp, C., Inskipp, T. and Baral, H. S. (2016). Birds of Nepal. Revised Edition, Helm field Guide. New Delhi: Bloomsbury Publishing India Pvt. Ltd.
[4] Haq, I. U., Bhat, B. A. and Ahmad, K., (2021). Feeding Behavior in Ibisbill (Ibidorhynchastruthersii). Advances in Zoology and Botany, 9(2): 60-64. http://dx.doi.org/10.13189/azb.2021.090204
[5] Inskipp, C. and Inskipp, T. (1991). A guide to the birds of Nepal. Second edition. London, UK: Christopher Helm.
[6] Inskipp C., Baral H. S., Phuyal S., Bhatt T. R., Khatiwada M., Inskipp, T, Khatiwada A., Gurung S., Singh P. B., Murray L., Poudyal L. and Amin R. (2016). The Status of Nepal's Birds: The National Red List Series. Zoological Society of London, UK.
[7] Inskipp, T. P., Brown, R. S., Clement, P., Greensmith, A., Howard, W. and Jarman, R. (1971). Notes on birds recorded in Nepal, September 1970 – March 1971. Unpublished. 43 pp. Downloaded from http://himalaya.socanth.cam.ac.uk/collections/inskipp/1971_003.pdf
[8] Pierce, R. J. (1986). Observations on behaviour and foraging of the Ibisbill Ibidorhynchastruthersii in Nepal. Ibis, 128(1), 37-47. https://doi.org/10.1111/j.1474-919X.1986.tb02090.x
[9] Shrestha, A. K., &Lakhey, S. P. (2000). A survey of Ibisbill (Ibidorhynchastruthersii) in the Raptiriver. BankoJanakari, 10(1), 4-6. https://doi.org/10.3126/banko.v10i1.17645
[10] Yang, R., Wu, H., Yang, X., Jiang, W., Zuo, L. and Xiang, Z., (2007). Diurnal time budget of the Black-necked Crane during the breeding season. Waterbirds, 30(1), 80-85. https://doi.org/10.1675/1524-4695(2007)030[0080:DTBOTB]2.0.CO;2
[11] Ye, Y., Davison, G. W., Zhu, P., Duan, L., Wang, N., Xing, S. and Ding, C., (2013). Habitat Utilization, Time Budget and Daily Rhythm of Ibisbill (Ibidorhynchastruthersii) in Daocheng County, Southwest China. Waterbirds, 36(2), 135-143. https://doi.org/10.1675/063.036.0203
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  • APA Style

    Bhusal, N., Paudel, S., Timilsina, P. (2024). Behavioural Monitoring and Threats Assessment of Ibisbill (Ibidorhynchastruthersii) in the Wintering Site, East Rapti River, Hetauda, Nepal. American Journal of Zoology, 7(1), 1-5. https://doi.org/10.11648/j.ajz.20240701.11

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    ACS Style

    Bhusal, N.; Paudel, S.; Timilsina, P. Behavioural Monitoring and Threats Assessment of Ibisbill (Ibidorhynchastruthersii) in the Wintering Site, East Rapti River, Hetauda, Nepal. Am. J. Zool. 2024, 7(1), 1-5. doi: 10.11648/j.ajz.20240701.11

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    AMA Style

    Bhusal N, Paudel S, Timilsina P. Behavioural Monitoring and Threats Assessment of Ibisbill (Ibidorhynchastruthersii) in the Wintering Site, East Rapti River, Hetauda, Nepal. Am J Zool. 2024;7(1):1-5. doi: 10.11648/j.ajz.20240701.11

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  • @article{10.11648/j.ajz.20240701.11,
      author = {Nahakul Bhusal and Sneha Paudel and Pooja Timilsina},
      title = {Behavioural Monitoring and Threats Assessment of Ibisbill (Ibidorhynchastruthersii) in the Wintering Site, East Rapti River, Hetauda, Nepal},
      journal = {American Journal of Zoology},
      volume = {7},
      number = {1},
      pages = {1-5},
      doi = {10.11648/j.ajz.20240701.11},
      url = {https://doi.org/10.11648/j.ajz.20240701.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajz.20240701.11},
      abstract = {Ibisbill is a resident breeder in the Himalayas and winters in the lower Terai of Nepal. It has been nationally assessed as Endangered due to disturbance, hunting, habitat loss and climate change. We did a field survey in the East Rapti River from Late November 2022 to Mid-March 2023 to assess the population status, behaviour and threats in the Ibisbill wintering ground. Observations on the behaviour were made at three selected sites, each of 1.5 km transects. Household survey was conducted with 50 respondents using structured and semi-structured questionnaires to assess the prominent threats along with direct observations. A total of six Ibisbills were recorded during the study period in the wintering ground. Ibisbills fed on both terrestrial and aquatic invertebrates including stonefly, mayfly and caddisfly larvae. Feeding and Foraging accounted for 55% of the total activity time in winter followed by Resting (22%). During the survey, the bird was quite inactive and solitary as well as found to be good swimmers, preferring to cross rivers by swimming rather than flying. People in the vicinity of the East Rapti River reported that extraction of stones and boulders, pollution and disturbances by human activities were major threats to Ibisbill. We recommend further monitoring of the species and protection of the wintering grounds from excessive anthropogenic activities. 
    },
     year = {2024}
    }
    

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    T1  - Behavioural Monitoring and Threats Assessment of Ibisbill (Ibidorhynchastruthersii) in the Wintering Site, East Rapti River, Hetauda, Nepal
    AU  - Nahakul Bhusal
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    JF  - American Journal of Zoology
    JO  - American Journal of Zoology
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    AB  - Ibisbill is a resident breeder in the Himalayas and winters in the lower Terai of Nepal. It has been nationally assessed as Endangered due to disturbance, hunting, habitat loss and climate change. We did a field survey in the East Rapti River from Late November 2022 to Mid-March 2023 to assess the population status, behaviour and threats in the Ibisbill wintering ground. Observations on the behaviour were made at three selected sites, each of 1.5 km transects. Household survey was conducted with 50 respondents using structured and semi-structured questionnaires to assess the prominent threats along with direct observations. A total of six Ibisbills were recorded during the study period in the wintering ground. Ibisbills fed on both terrestrial and aquatic invertebrates including stonefly, mayfly and caddisfly larvae. Feeding and Foraging accounted for 55% of the total activity time in winter followed by Resting (22%). During the survey, the bird was quite inactive and solitary as well as found to be good swimmers, preferring to cross rivers by swimming rather than flying. People in the vicinity of the East Rapti River reported that extraction of stones and boulders, pollution and disturbances by human activities were major threats to Ibisbill. We recommend further monitoring of the species and protection of the wintering grounds from excessive anthropogenic activities. 
    
    VL  - 7
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Author Information
  • Faculty of Forestry, Agriculture and Forestry University, Hetauda, Nepal

  • Institute of Forestry, Tribhuvan University, Hetauda, Nepal

  • Faculty of Forestry, Agriculture and Forestry University, Hetauda, Nepal

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