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Accuracy of swallow roost locations assigned using weather surveillance radar
- abowlofpetunias 8y agoA roost ring is a detection of birds via radar as they leave a roosting site. Examples: https://i.imgur.com/nGsOgyh.gif https://i.imgur.com/nGsOgyh.gif https://www.weather.gov/grb/081110_roostring https://www.weather.gov/grb/081110_roostring