|Status: Migrant.||Last recorded on site in 2021
|The Patuxent web-site provides more general information about this species.|
|At this time of year, this species is expected to be present on site.|
Occurs as a common migrant on lakes and ponds throughout the lab. On rare occasions individuals have been found throughout the winter. In 1999 one male spent the entire summer on the Main Ring moat.
Photographer: Dan Johnson.