Female & chicks Double-crested Cormorant or Phalacrocorax auritus IV
This is the same female located earlier on her nest. She has two healthy chicks. This is the Sigmonster 300-800mm with the Nikon TC-17E II added. And yes, it's still a crop.
NIKON CORPORATION NIKON D300, f/8 @ 750 mm, 1/500, ISO 400, No Flash