First records of Swallow Tanager Tersina viridis in Uruguay

Abstract

Summary. The first records of Swallow Tanager Tersina viridis in Uruguay were made in 2012 and 2022 in different regions of the country. Together with other observations in central-south South America outside its usual distribution, these data appear to support the hypothesis that the species makes erratic movements in search of food during the austral winter non-breeding period. Alternatively, the new records could reflect an expansion of the species' distribution.