Great Blue Herons in Sudbury

July 2, 2020

  • Great blue herons at Assabet River National Wildlife Refuge in Sudbury, photographed by Marie Rock.
    Great blue herons at Assabet River National Wildlife Refuge in Sudbury, photographed by Marie Rock.
  • Great blue herons at Assabet River National Wildlife Refuge in Sudbury, photographed by Marie Rock.
    Great blue herons at Assabet River National Wildlife Refuge in Sudbury, photographed by Marie Rock.
  • Great blue herons at Assabet River National Wildlife Refuge in Sudbury, photographed by Marie Rock.
    Great blue herons at Assabet River National Wildlife Refuge in Sudbury, photographed by Marie Rock.

Marie Rock photographed these great blue herons at their nest in Assabet River National Wildlife Refuge in Sudbury.