April 2021 Monterey Bay Whale Watch Marine Mammal Sightings List

Monterey Bay Whale Watch
List of Marine Mammal Sightings
in the Monterey Bay Region
April 2021

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.

Date	#	Type of Animal(s)
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4/30 10 a.m.	8	Humpback Whales
	3	Killer Whales (Orcas)
	25	Risso’s Dolphins
	4	Black-footed Albatross

4/30 8 a.m.	15	Humpback Whales
All Day	3	Killer Whales (Orcas)
	800	Pacific White-sided Dolphins
	300	Risso’s Dolphins
	12	Harbor Porpoise

4/29 10 a.m.	8	Humpback Whales
	10	Harbor Porpoise

4/29 8 a.m.	14	Humpback Whales (feeding)
All Day	50	Risso’s Dolphins

4/28 10 a.m.	7	Humpback Whales (lunge-feeding)
	2	Gray Whales (mom/calf)
	5	Killer Whales (Orcas – 51As, 50B)

4/27 10 a.m.	4	Humpback Whales
	6	Killer Whales (Orcas)
	2000	Pacific White-sided Dolphins
	40	Risso’s Dolphins
	20	Northern Right Whale Dolphins

4/26 10 a.m.	10	Killer Whales (Orcas)
	15	Risso’s Dolphins

4/25 2:30 p.m.	10	Killer Whales (Orcas – feeding, socializing)

4/25 10 a.m.	2	Humpback Whales
	15	Killer Whales (Orcas)
	80	Risso’s Dolphins

4/25 8 a.m.	3	Humpback Whales
All Day	15	Killer Whales (Orcas)

4/24 2:30 p.m.	15	Killer Whales (Orcas – feeding, socializing)

4/24 10 a.m.	3	Humpback Whales
	15	Killer Whales (Orcas)
	2	Harbor Porpoise

4/24 8 a.m.	3	Humpback Whales
All Day	15	Killer Whales (Orcas – feeding, socializing)

4/23 2:30 p.m.	15	Bigg’s Killer Whales (Orcas – mammal-eating)
	40	Risso’s Dolphins

4/23 10 a.m.	15	Killer Whales (Orcas)
	25	Risso’s Dolphins
	4	Harbor Porpoise
	2	Black-footed Albatross

4/23 8 a.m.	15	Killer Whales (Orcas – predation)
All Day	50	Risso’s Dolphins

4/22 10 a.m.	6	Humpback Whales (breaching)
	25	Risso’s Dolphins
	1	Black-footed Albatross

4/22 8 a.m.	3	Humpback Whales
All Day	2	Fin Whales
	25	Risso’s Dolphins

4/21 2:30 p.m.	1	Gray Whale
	150	Risso’s Dolphins

4/21 10 a.m.	6	Killer Whales (Orcas)
	70	Risso’s Dolphins

4/19 10 a.m.	5	Killer Whales (Orcas – CA140s, CA40, CA137)
	20	Risso’s Dolphins

4/19 8 a.m. All Day	15+	Killer Whales (Orcas – CA140s, CA51s, CA40, CA137, and others)

4/18 2:30 p.m.	6	Humpback Whales
	40	Risso’s Dolphins

4/18 10 a.m.	20	Killer Whales (Orcas)
	5	Black-footed Albatross

4/18 8 a.m.	2	Gray Whales
All Day	30+	Killer Whales (Orcas)

4/17 10 a.m.	5	Humpback Whales
	19	Killer Whales (Orcas)
	15	Risso’s Dolphins
	4	Black-footed Albatross

4/17 8 a.m.	1	Gray Whale
All Day	19	Killer Whales (Orcas)

4/16 10 a.m.	5	Killer Whales (Orcas – CA140Bs, CA 23A2)
	6	Risso’s Dolphins

4/16 8 a.m.	2	Gray Whales
All Day	5	Killer Whales (Orcas – CA140Bs, CA 23A2)
	250	Risso’s Dolphins

4/15 10 a.m.	11	Humpback Whales (friendly)
	40	Risso’s Dolphins
	1	Black-footed Albatross

4/15 9 a.m.	15	Humpback Whales (friendly)
	40	Risso’s Dolphins

4/14 10 a.m.	10	Killer Whales (Orcas)
	50	Risso’s Dolphins

4/13 10 a.m.	1	Humpback Whale
	50	Risso’s Dolphins

4/12 2:30 p.m.	1	Humpback Whale
	4	Harbor Porpoise

4/12 10 a.m.	2	Humpback Whales
	1	Fin Whale
	250	Risso’s Dolphins
	5	Harbor Porpoise

4/12 8 a.m.	2	Humpback Whales
All Day	5	Gray Whales
	50	Pacific White-sided Dolphins
	300	Risso’s Dolphins (including Casper)

4/11 10 a.m.	2	Humpback Whales
	3	Gray Whales (mating)
	120	Pacific White-sided Dolphins
	400	Risso’s Dolphins
	3	Harbor Porpoise

4/11 8 a.m.	5	Gray Whales
All Day	2	Killer Whales (Orca – 4 in the area)
	20	Pacific White-sided Dolphins
	400	Risso’s Dolphins

4/10 10 a.m.	1	Humpback Whale (breaching)
	20	Pacific White-sided Dolphins
	60	Risso’s Dolphins
	2	Black-footed Albatross

4/10 8 a.m.	3	Humpback Whales
All Day	2	Fin Whales
	100	Pacific White-sided Dolphins
	200	Risso’s Dolphins

4/9 10 a.m.	50	Risso’s Dolphins

4/9 8 a.m. All Day	2	Humpback Whales (lunge-feeding, tail slapping)

4/8 10 a.m.	6	Humpback Whales
	2	Gray Whales
	10	Risso’s Dolphins

4/7 10 a.m.	10	Gray Whales
	10	Risso’s Dolphins (nursery pod)
	1	Mola Mola (Ocean Sunfish)
	1	Laysan Albatross

4/6 2:30 p.m.	5	Gray Whales

4/6 10 a.m.	5	Gray Whales
	9	Killer Whales (Orca)

4/5 10 a.m.	10	Humpback Whales (lunge-feeding)
	3	Gray Whales
	2	Harbor Porpoise

4/4 2:30 p.m.	3	Gray Whales

4/4 10 a.m.	11	Gray Whales (3 friendlies)
	250	Risso’s Dolphins
	4	Black-footed Albatross

4/4 8 a.m.	13	Gray Whales
All Day	7	Killer Whales (Orca)
	20	Risso’s Dolphins

4/3 2:30 p.m.	4	Killer Whales (Orca)
	250	Risso’s Dolphins
	8	Black-footed Albatross

4/3 10 a.m.	7	Killer Whales (Orca)
	80	Pacific White-sided Dolphins
	700	Risso’s Dolphins (including Casper)

4/3 8 a.m.	7	Gray Whales
All Day	11	Killer Whales (Orca)
	250	Risso’s Dolphins (including Casper)
	1	Salmon Shark

4/2 2:30 p.m.	4	Gray Whales
	15	Pacific White-sided Dolphins
	1000	Risso’s Dolphins
	2	Black-footed Albatross

4/2 10 a.m.	8	Gray Whales
	20	Pacific White-sided Dolphins
	200	Risso’s Dolphins
	1	Black-footed Albatross

4/1 10 a.m.	7	Gray Whales
	180	Risso’s Dolphins
	4	Black-footed Albatross

4/1 9 a.m.	6	Gray Whales
	500	Risso’s Dolphins (including Casper)

Pacific White-sided Dolphins photo by Daniel Bianchetta
Pacific White-sided Dolphins (April 30, 2021)

Sea Lion photo by Daniel Bianchetta
Sea Lion (April 29, 2021)

Killer Whales with calf photo by Daniel Bianchetta
Kil;er Whales (Orcas)
(Note orange eyepatch color on calf – April 28, 2021)

Pacific White-sided Dolphin photo by Daniel Bianchetta
Pacific White-sided Dolphin (April 27, 2021)

Killer Whale tail throw photo by Daniel Bianchetta
Killer Whale tail throw (April 25, 2021)

Killer Whale with kelp on dorsal fin (April 23, 2021)

Killer Whale and calf photo by Daniel Bianchetta
Killer Whale and calf (April 23, 2021)

Humpback Whale fluke photo by Daniel Bianchetta
Humpback Whale fluke (April 22, 2021)

Fin Whales photo by Daniel Bianchetta
Fin Whales (April 22, 2021)

Mother and pup Sea Otters photo by Daniel Bianchetta
Mother and pup Sea Otters (April 21, 2021)

Orca spyhopping photo by Daniel Bianchetta
Killer Whale (Orca) Spyhopping (April 16, 2021)

Humpback Whale spyhopping photo by Daniel Bianchetta
Humpback Whale Spyhopping (April 15, 2021)

Risso's Dolphin calf photo by Daniel Bianchetta
Risso’s Dolphin calf (April 15, 2021)

Pigeon Guillemots photo by Daniel Bianchetta
Pigeon Guillemots (April 14, 2021)

Southern Sea Otters photo by Daniel Bianchetta
Southern Sea Otters (April 13, 2021)

Casper and friend Risso's Dolphins photo by Daniel Bianchetta
Casper and friend Risso’s Dolphins (April 12, 2021)

Risso's Dolphin photo by Daniel Bianchetta
Risso’s Dolphin (April 11, 2021)

Fin Whale photo by Daniel Bianchetta
Fin Whale (April 10, 2021)

Humpback Whale photo by Daniel Bianchetta
Humpback Whale close-up (April 9, 2021)

Gray Whale photo by Daniel Bianchetta
Gray Whale (April 7, 2021)

Risso's Dolphin calf photo by Daniel Bianchetta
Risso’s Dolphin calf (April 7, 2021)

Killer Whales photo by Daniel Bianchetta
Killer Whales (April 6, 2021)

Lunge-feeding Humpback Whale photo by Daniel Bianchetta
Lunge-feeding Humpback Whale (April 5, 2021)

Killer Whale blow hole close-up (April 3, 2021)

Killer Whales photo by Daniel Bianchetta
Killer Whales (Orcas – April 3, 2021)

Breaching Risso's Dolphin photo by Daniel Bianchetta
Breaching Risso’s Dolphin (April 3, 2021)

Black-footed Albatross photo by Daniel Bianchetta
Black-footed Albatross (April 1, 2021)

APRIL 2021 MONTEREY BAY WHALE WATCH MARINE MAMMAL SIGHTINGS LIST

MARINE MAMMAL SIGHTINGS IN THE MONTEREY BAY REGION