Conservationists have been left baffled by the bird's odd movements, with fears that they could be triggered by environmental factors.
Scientists on a research vessel off the central California coast spotted a waved albatross, marking just the second recorded sighting of the bird north of Central America.
The yellow-billed bird with black button eyes, which can have an 2.4-metre wingspan and spends much of its life airborne over the ocean, also came with a mystery. Researchers wonder how and why a species known to breed in the Galapagos Islands — roughly 4,800 kilometres away — ventured so far north.
To scientists, it’s a “vagrant” bird, one traveling far outside its typical range. It was spotted 37 kilometres off the coast of Point Piedras Blancas, roughly midway between San Francisco and Los Angeles.
The adult bird “doesn’t seem to be in a hurry to get back south,” says marine ornithologist Tammy Russell, who was on board the vessel and noted that the same bird apparently was spotted in October off the Northern California coast.
Scientists are still 'in shock'
“I can’t even believe what I saw,” Russell writes on Facebook. “I’m still in shock.”
Russell, a contract scientist with the Farallon Institute and a postdoctoral scholar at the University of California, San Diego, Scripps Institution of Oceanography, says it’s all but impossible to determine why the bird ended up so far from its home.
It could have been driven north by a storm. Some birds have a rambling spirit and just go farther than others.
“It likely didn’t breed last season because adults lay their egg in spring and the chicks leave the nests by January,” Russell says in an email. “Perhaps it went wandering on its year off and will soon return to the Galapagos to be reunited with its mate for the next season?”
“Who knows how long it will stay around or if it will ever return? But that’s why these sightings are so special.”
Is climate change to blame for the wandering albatross?
Marshall Iliff, eBird project leader at Cornell University’s Lab of Ornithology, says seabirds such as albatrosses can travel great distances in search of food.
“The odd individual routinely may turn up far from home, even in the wrong hemisphere or exceptionally in the wrong ocean,” Iliff says via email. “Food shortages could prompt a bird to wander, but a single bird could also be a fluke accident. There is no evidence at this point that this is anything but a fluke.”
The International Union for Conservation of Nature calls the bird — the largest in the Galapagos — critically endangered. According to the American Bird Conservancy, its range is restricted to the tropics. It nests on lava fields amid scattered boulders and sparse vegetation.
The life span of the birds can reach 45 years. They feed primarily on fish, squid and crustaceans.
Russell notes that if multiple birds were being seen in California, it could be a sign they were being driven northward by environmental factors. Previously, she has written about five species of Booby that are now common off California because of warming temperatures and marine heatwaves.
As for the lone albatross, “If this is a sign of this species moving north, we now have some baseline data when we first detected one,” Russell adds.
