Black-crowned Night-Heron in Frederick Co., Maryland (6/10/2021). (c) Emilio Concari, some rights reserved (CC BY-NC). Photo by Emilio Concari. (MBP list)
A Black-crowned Night-Heron in Frederick Co., Maryland (7/9/2017). Photo by Andrew Clemens. (MBP list)
A juvenile Black-crowned Night-Heron in Frederick Co., Maryland (8/19/2018). Photo by Dean Mahlstedt. (MBP list)
Black-crowned Night-Herons in Frederick Co., Maryland (6/1/2018). Photo by Andrew Clemens. (MBP list)
Black-crowned Night-Heron in Talbot Co., Maryland (9/17/2021). (c) David Kidwell, some rights reserved (CC BY-NC-SA). Photo by Dave Kidwell. (MBP list)