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Monterey Bay Whale Watch
List of Marine Mammal Sightings
in the Monterey Bay Region

December 2023
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Note -- This list includes reported sightings from Monterey Bay Whale Watch trips. Unusual sightings of other marine animals such as Leatherback Sea Turtles and Basking Sharks are also listed, in addition to unusual seabirds such as Albatross and Brown Boobies. California Sea Lions are mentioned only if numbers or behavior are of interest. Harbor Seals and Southern Sea Otters, which are seen on all whale watching trips, are not included in the list.

These sightings are copyright protected and may not be used without permission from Nancy Black. All rights reserved. Unauthorized use of this information is a violation of federal copyright law, and is subject to prosecution to the full extent of the law.


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   Killer Whale identifications by the California Killer Whale Project
Date # Type of Animal(s)

12/31 1:30 p.m. 6 Gray Whales

12/31 10 a.m. 2 Humpback Whales
  2 Gray Whales

12/31 9 a.m. 2 Humpback Whales
  3 Gray Whales

12/30 9 a.m. 6 Humpback Whales
  9 Killer Whales (Orcas - CA140Bs and CA122Cs)
  1500 Pacific White-sided Dolphins
  200 Northern Right Whale Dolphins

12/25 9 a.m. 2 Humpback Whales
  1 Gray Whale

12/24 9 a.m. 2 Gray Whales
  600 Risso's Dolphins (including Casper)

12/23 1:30 p.m. 2 Humpback Whales (breaching)

12/23 10 a.m. 5 Humpback Whales

12/23 9 a.m. 2 Humpback Whales
  2 Gray Whales

12/21 9 a.m. 3 Humpback Whales
  400 Risso's Dolphins

12/17 9 a.m. 3 Humpback Whales

12/16 1:30 p.m. 4 Humpback Whales
  50 Pacific White-sided Dolphins
  350 Risso's Dolphins (including Casper)

12/16 9 a.m. 2 Humpback Whales
  50 Pacific White-sided Dolphins
  650 Risso's Dolphins (including Casper)

12/15 9 a.m. 3 Humpback Whales ("Chin-up" + calf + escort)

12/14 9 a.m. 6 Humpback Whales
  80 Risso's Dolphins
  4 Black-footed albatross

12/13 9 a.m. 5 Humpback Whales
  10 Pacific White-sided Dolphins
  115 Risso's Dolphins
  3 Mola Mola (Ocean Sunfish)
  5 Black-footed albatross

12/12 9 a.m. 8 Killer Whales (Orcas - friendly and active)
  50 Risso's Dolphins

12/11 9 a.m. 10 Humpback Whales
  5 Black-footed albatross

12/10 9 a.m. 11 Humpback Whales
  20 Risso's Dolphins

12/9 1:30 p.m. 10 Humpback Whales

12/9 9 a.m. 17 Killer Whales (Orcas - Minke Whale predation)

12/8 1:30 p.m. 4 Humpback Whales

12/8 10 a.m. 6 Humpback Whales
Charter 60 Risso's Dolphins

12/7 9 a.m. 6 Humpback Whales
  80 Risso's Dolphins
  4 Black-footed albatross
  1 Belted Kingfisher
  1 Ancient Murrelet

12/6 9 a.m. 10 Humpback Whales (breaching)
  30 Risso's Dolphins
  3 Black-footed albatross

12/4 9 a.m. 11 Humpback Whales
  200 Pacific White-sided Dolphins
  1000 Risso's Dolphins
  10 Northern Right Whale Dolphins

12/3 9 a.m. 9 Humpback Whales (breaching, lunge-feeding)

12/2 9 a.m. 9 Humpback Whales
  4 Killer Whales (Orcas - CA39As)

12/1 9 a.m. 9 Humpback Whales
  60 Risso's Dolphins

  

Photos © 2023 Daniel Bianchetta


Killer Whales including calf photo by daniel bianchetta
Gray Whale flukes (December 31, 2023)

Killer Whales including calf photo by daniel bianchetta
Killer Whales including calf (Orcas)
(December 30, 2023)

Southern Sea Otters photo by Daniel Bianchetta
Southern Sea Otters (December 23, 2023)

Eared Grebes photo by Daniel Bianchetta
Eared Grebes (December 21, 2023)

Breaching Humpback Whale photo by Daniel Bianchetta
Breaching Humpback Whale (December 16, 2023)

Breaching Risso's Dolphin photo by Daniel Bianchetta
Breaching Risso's Dolphin (December 16, 2023)

White Risso's Dolphin Casper photo by daniel bianchetta
White Risso's Dolphin Casper (December 16, 2023)

Humpback Whale tail throwing photo by Daniel Bianchetta
Humpback Whale tail throwing (December 13, 2023)

Killer Whale (Orca) kelping (playing with kelp) photo by daniel bianchetta
Killer Whale (Orca) kelping (playing with kelp)
(December 7, 2023)

Lunge-feeding Humpback Whales photo by daniel bianchetta
Lunge-feeding Humpback Whales (December 3, 2023)

Black-footed Albatross photo by daniel bianchetta
Black-footed Albatross (December 2, 2023)

Killer Whales (Orcas) photo by daniel bianchetta
Killer Whales (Orcas - December 2, 2023)


Photos © 2023 Daniel Bianchetta



Copyright © 2023 Monterey Bay Whale Watch, LLC. No use of the sightings information is permitted without prior approval.


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Last updated January 2, 2024