Mark R. Johnson:
Acadian Flycatcher juvenile-Cecil Co., MD 8/22/14
Mark R. Johnson:
Acadian Flycatcher-Cecil Co., MD 6/5/13
Mark R. Johnson:
Acadian Flycatcher-Harford Co., MD 6/28/18
Mark R. Johnson:
Acorn Woodpecker-Santa Cruz Co., AZ 4/24/17
Mark R. Johnson:
Alder Flycatcher-Franklin Co., NY 6/14/16
Mark R. Johnson:
Alder Flycatcher-Franklin Co., NY 6/15/16
Mark R. Johnson:
American Avocet-Baltimore Co., MD 7/7/16
Mark R. Johnson:
American Bittern-Baltimore Co., MD 2/5/17
Mark R. Johnson:
American Bittern-Baltimore Co., MD 2/5/17
Mark R. Johnson:
American Bittern-Baltimore Co., MD 2/5/17
Mark R. Johnson:
American Bittern-Orange Co., FL 12/2/16
Mark R. Johnson:
American Coot-Baltimore Co., MD 10/3/16
Mark R. Johnson:
American Coot-Harford Co., MD 8/11/15
Mark R. Johnson:
American Crow fledgling-Charles Co., MD 5/18/16
Mark R. Johnson:
American Dipper-Lawrence Co., SD 6/18/19
Mark R. Johnson:
American Dipper-Lawrence Co., SD 6/18/19
Mark R. Johnson:
American Dipper-Lawrence Co., SD 6/18/19
Mark R. Johnson:
American Golden Plover-Harford Co., MD 10/3/14
Mark R. Johnson:
American Golden Plover-Harford Co., MD 9/13/17
Mark R. Johnson:
American Goldfinch-Cecil Co., MD 8/23/18
Mark R. Johnson:
American Goldfinch-Howard Co., MD 8/26/16
Mark R. Johnson:
American Kestrel-Harford Co., MD 5/6/17
Mark R. Johnson:
American Oystercatcher-Cape May Point, NJ 9/14/14
Mark R. Johnson:
American Oystercatcher-Cape May Point, NJ 9/14/14
Mark R. Johnson:
American Oystercatcher-Worcester Co., MD 6/29/16
Mark R. Johnson:
American Pipit-Fawn Grove, PA 2/22/15
Mark R. Johnson:
American Pipit-Harford Co., MD 2/9/17
Mark R. Johnson:
American Pipit-Queen Anne's Co., MD 12/10/17
Mark R. Johnson:
American Redstart-Harford Co., MD 6/17/18
Mark R. Johnson:
American Robin-Garrett Co., MD 6/29/15
