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Images of Hirundo smithii from Thailand.
References:
[1] Avibase - accessed 14 July 2020.
[2] BirdLife International. 2016. Hirundo smithii. The IUCN Red List of Threatened Species 2016: e.T22712299A94328026. https://dx.doi.org/10.2305/IUCN.UK.2016-3.RLTS.T22712299A94328026.en. Downloaded on 14 July 2020.
[3] Clements, J. F., T. S. Schulenberg, M. J. Iliff, S. M. Billerman, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2019. The eBird/Clements Checklist of Birds of the World: v2019. Downloaded from https://www.birds.cornell.edu/clementschecklist/download/ on 03 August 2020.
[1] Avibase - accessed 14 July 2020.
[2] BirdLife International. 2016. Hirundo smithii. The IUCN Red List of Threatened Species 2016: e.T22712299A94328026. https://dx.doi.org/10.2305/IUCN.UK.2016-3.RLTS.T22712299A94328026.en. Downloaded on 14 July 2020.
[3] Clements, J. F., T. S. Schulenberg, M. J. Iliff, S. M. Billerman, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2019. The eBird/Clements Checklist of Birds of the World: v2019. Downloaded from https://www.birds.cornell.edu/clementschecklist/download/ on 03 August 2020.