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Satellite Tracking

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Leo Henderson

Washington Marine Mammal Tracking

A project of SeaDoc, PAWS, WDFW, NOAA, TMMC.

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Leo Henderson (Steller Sea Lion) is 8 km W off the coast of United States and 105 km from Olympia

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Species: Steller Sea Lion
Life Stage: Juvenile
Gender: Male
Release Date: 2015-04-15 06:00:00
Release Location: The Marine Mammal Center
Last Location: 2015-05-25 01:04:12


On October 3, 2014 Washington Department of Fish and Wildlife (WDFW) Marine Mammal Investigations responded to a 4 month old Steller sea lion pup stranded in Ocean Shores, Washington. WDFW collected the animal and held him overnight for observation and to perform a health assessment. On the morning of October 4, 2014 the pup was transferred to PAWS Wildlife Center in Lynnwood, WA for stabilization, treatment, and care. The pup was nicknamed "Henderson" after the Ocean Shores police officer that responded to the pup on the beach. Steller sea lions are dependent on their mother for the first year of life and this animal stranded without an adult in sight. Due to the long length of rehabilitation needed for this animal to reach weaning age and to provide conspecifics for the pup it was decided to send the animal to The Marine Mammal Center in Sausalito, CA. In partnership with the United States Coast Guard the pup was flown from Seattle, WA on a C-130 training flight to Sacramento, CA on November 13, 2014. The Marine Mammal Center staff called him "Leo" (as the name "Henderson" was already in use by another patient) as they continued his care and rehabilitation. In early April the pup was released off the outer coast of Washington.

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