Decline in winter visiting Common Kestrel Falco tinnunculus (Falconiformes: Falconidae) at Rani, Assam 2011–2024
DOI:
https://doi.org/10.11609/jott.9764.18.7.29357-29359Keywords:
Avian decrease, encounter rate, Kamrup District, Kestrel, migratory birds, raptors, winter seasonAbstract
The Common Kestrel Falco tinnunculus was recorded along the metal road in Rani block, Kamrup district, Assam. The observations carried out for 14 years during winter season, as the species is migratory. Out of 422 sightings, on 388 occasions they were sighted singly, while on 34 occasions in a pair. The encounter rate has been declined after year 2020, and no Kestrel sighting recorded after 2022. The urgency of detailed study on the causes of decline is expressed.
References
Aparicio, J.M., A. Muñoz, P.J. Cordero & R. Bonal (2022). Causes of the recent decline of a Lesser Kestrel (Falco naumanni) population under an enhanced conservation scenario. Ibis 165: 388–402.
Archana T.R., A. Nefla, H. Byju, S. Almaroofi, O.R. Reshi, A.S. Alatawi & Aarif (2024). Effects of plant and avian frugivore interaction networks on landscape patterns and seed dispersal functions in the southern Western Ghats, India. Ornithological Science 23(1): 35–43. https://doi.org/10.2326/osj.23.35
Bird, D.M. & R. Bowmen (1987). The ancestral Kestrel. Raptor Research Foundation Inc. and Macdonald Raptor Research Center of McGill University, Sainte-Anne-de-Bellevue, 174 pp.
BirdLife International (2021). Species factsheet: Common Kestrel Falco tinnunculus. https://datazone.birdlife.org/species/factsheet/common-kestrel-falco-tinnunculus. Downloaded on 19.iii.2025
Callery, K.R., S.E. Schulwitz, A.R. Hunt, J.M. Winiarski, C.J.W. McClure, R.A. Fischer & J.A. Heath (2022). Phenology effects on productivity and hatching-asynchrony of American Kestrels (Falco sparverius) across a continent. Global Ecology & Conservation 36: e02124. https://doi.org/10.1016/j.gecco.2022.e02124
Davis, T.A.W. (1975). Food of the Kestrel in Winter and Early Spring. Bird Study 22(2): 85–91. https://orcid.org/10.1080/00063657509476448
Fink, D., T. Auer, A. Johnston, M. Strimas-Mackey, S. Ligocki, O. Robinson, W. Hochachka, L. Jaromczyk, C. Crowley, K. Dunham, A. Stillman, I. Davies, A. Rodewald, V. Ruiz-Gutierrez & C. Wood (2023). eBird Status and Trends, Data Version: 2022; Released: 2023. Cornell Lab of Ornithology, Ithaca, New York. https://doi.org/10.2173/ebirdst.2022
Naoroji, R. (2006). Birds of Prey of the Indian Subcontinent. Om Books International, 692 pp.
Petty, S.J., D.I.K. Anderson, M. Daison, B. Little, T.N. Sherratt, C.J. Thomas & X. Lambin (2003). The decline of Common Kestrels Falco tinnunculus in forested area of northern England: the role of predation by Northern Goshawks Accipiter gentilis. Ibis 145: 472–483.
Published
Issue
Section
License
Copyright (c) 2026 Sachin Ranade
This work is licensed under a Creative Commons Attribution 4.0 International License.
Authors own the copyright to the articles published in JoTT. This is indicated explicitly in each publication. The authors grant permission to the publisher Wildlife Information Liaison Development (WILD) Society to publish the article in the Journal of Threatened Taxa. The authors recognize WILD as the original publisher, and to sell hard copies of the Journal and article to any buyer. JoTT is registered under the Creative Commons Attribution 4.0 International License (CC BY), which allows authors to retain copyright ownership. Under this license the authors allow anyone to download, cite, use the data, modify, reprint, copy and distribute provided the authors and source of publication are credited through appropriate citations (e.g., Son et al. (2016). Bats (Mammalia: Chiroptera) of the southeastern Truong Son Mountains, Quang Ngai Province, Vietnam. Journal of Threatened Taxa 8(7): 8953–8969. https://doi.org/10.11609/jott.2785.8.7.8953-8969). Users of the data do not require specific permission from the authors or the publisher.
