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A Thai official from the Department of National Parks, Wildlife and Plant Conservation makes medical and physical records of a barn swallow during a survey and health check program in Bangkok, Thailand, 14 January 2019. Hundreds of barn swallows (Hirundo rustica) are taken from a street in Bangkok to check their health aimed to prevent the spread of bird flu viruses and diseases as well as gather information, monitor and survey on the migratory birds which are believed fly from Russia to escape the harsh winter. (Photo by Rungroj Yongrit/EPA/EFE)
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