The calf, named L125, is estimated based on its size to be at least a month old.
“It is nicely filled out and appears to be a perfectly normal little calf,” Dave Ellifrit, Center for Whale Research identification expert, said in a release.
L Pod hasn’t had a calf born since January 2019. Two other calves born in J pod last year appeared to be healthy, the center said.
The three pods were seen together with the new calf in Haro Strait this week.
The Southern Resident orcas have been on the endangered species list since 2005. After this latest birth, the Southern Resident orcas number 75. It is estimated that their historical populations were at minimum 140, according to the National Oceanic and Atmospheric Administration.
NOAA names dwindling salmon populations, pollution and vessel noise to be top risks to the orcas, but has recently declared vessel strikes to be an underappreciated problem.