Northern Rough-winged Swallow

Cornell’s All About Birds

April 17, 2014 Centennial Park Photo by Bonnie Ott

April 17, 2014
Centennial Park
Photo by Bonnie Ott

Meadowbrook Park June 13, 2014 Photo by Russ Ruffing

Meadowbrook Park
June 13, 2014
Photo by Russ Ruffing

Lake Elkhorn March 30, 2012 Photo by Harry Fink

Lake Elkhorn
March 30, 2012
Photo by Harry Fink

Northern Rough-winged Swallow nest at Marriottsville PVSP Jim Wilkinson May 3, 2023

Nest on Patapsco River
May 3, 2023
Photo by Jim Wilkinson

Henryton PVSP Nest April 25, 2012 Patapsco River Photo by Nancy Magnusson

Nest on Patapsco River
April 25, 2012
Photo by Nancy Magnusson