two-crested cormorant (nannopterum auritum)

two-crested cormorant nannopterum auritum aggressive america animal beak bill bird birds california black blue eyes conservation fishing cormorants crested diver divers diving double double-crested environment fauna feathers fish floats hunter lake long natural nature north ornithology outdoor outdoors park phalacrocorax auritus plumage predator sharp species swims water waterbird wildlife wings