Adult pelicans are falling victim to toxic algae bloom. Now their babies are starving, too
For the last month, hundreds of seabirds have been poisoned by domoic acid, a neurotoxin produced in harmful algal blooms that are consumed by filter-feeding fish, such as anchovies and sardines. The small fish aren't affected by the toxins, but many seabirds and marine mammals that feed on these fish are, and the sickness can be deadly. More than 100 area seas lions have been sickened and killed by the toxins over the last few months, along with several dozen dolphins that have died.
But more recently, officials have also been responding to an influx of baby pelicans that aren't sick from the toxins — but are struggling to survive because they're extremely malnourished.
Officials think the two phenomena are related: as more adult pelicans become sick, disoriented or die, that has left more and more baby pelicans to fend for themselves, leaving their nests prematurely when they don't yet know how to fish.
It's just a theory right now, but experts say it would help explain the unprecedented number of starving baby pelicans turning up at wildlife rescue centers.
'It is unusual for us to receive such a high volume of chicks that are this young,' the International Bird Rescue, a global conservation organization that has one of its largest wildlife rescue centers in San Pedro, wrote on its website. 'Many are very young birds, not fully grown, and do not seem to understand how to feed themselves.'
'They are just starving and cold and sad,' said Rebecca Duerr, the center's director of research and veterinary science. At its San Pedro location, specialists were caring for 60 pelican babies as of Tuesday, with more arriving every day, Duerr said. That's in addition to about 50 other birds, many adult pelicans, that have come into the center over the last month because of the domoic acid poisoning. More than half of the birds have since died.
'We keep thinking it's over and then we get more birds,' Duerr said of the influx.
There have been other times in recent years when the California brown pelican, a federally protected species, has been found dead or emaciated in high numbers, and other years when large numbers of animals have become sick from domoic acid as the algae bloom is naturally occurring. But the concurrent events this year are especially concerning to officials.
Debbie McGuire, the executive director of the Wetlands and Wildlife Care Center in Huntington Beach, said she believes runoff from the Los Angeles firestorm likely elevated this year's bloom, as changes to nutrient levels in the ocean can increase the strength and length of the bloom. Officials don't yet know how long this bloom will last. Scientists have also found that human-caused climate change and warming ocean waters can also increase the growth of harmful algae blooms.
McGuire said she can't remember a time in the last 20 years when her organization has treated this many birds with domoic acid at one time, noting that it is testing the center's workforce and capacity.
'My staff is burning the midnight oil for a month now,' McGuire said. 'It's hard on them — a lot of compassion and love goes into our work.'
As of Tuesday, she said her team is caring for almost 60 brown pelicans, up seven from the day before — and most require intensive care, often including anti-seizure medication, IVs or lessons on how to feed themselves. Still, more than 50% of the pelicans they've taken in over the last month have died, as many birds sickened by domoic acid cannot be saved if the illness has progressed too far.
'If we get them quick enough we can save them, but time is of the essence,' McGuire said.
The two centers said people have found the disoriented birds in unexpected and often hazardous locations over the last month, including on the 405 Freeway, on a terminal at LAX and near Amazon warehouses.
The birds 'don't know where they are, they get confused, they fly inland,' McGuire said.
Both rescue centers are also treating other seabirds ill from domoic acid, including the western grebes, brandt's cormorants and red-throated loons, but brown pelicans have most frequently been sick. Neither location has reached capacity yet, but McGuire said it's a concern if the situation continues at current rates.
In a recent post on social media, the Wetlands and Wildlife Care Center asked for monetary donations or items on their wishlist to help ensure they can keep providing the care the animals need. The International Bird Rescue also has asked for donations to help it respond to what its called a seabird crisis.
'Stress is high as we care for over 52 pelicans, many of whom are not yet eating on their own, with no clear sign of slowing down soon,' the Wetlands and Wildlife Care Center said in its post.
Officials warned beachgoers to use extreme caution when approaching any sick or dead animal, including seabirds. If you encounter one, the International Bird Rescue urged people to call the organization's bird helpline at (866) 767-2473. The Wetlands & Wildlife Care Center recommended people to call their local animal control office or find more information online.
Times staff writer Summer Lin contributed to this report.
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10-07-2025
- Yahoo
Poisoned pelicans fly again after the worst algal bloom in a decade
A flock of brown pelicans waddled back into the wild on Wednesday morning, survivors of Southern California's latest toxic algal bloom. This year's bloom was the deadliest such event since 2015, when thousands of animals were killed along a coastal swath stretching from Central California to Alaska. This year's intense bloom, which started in January, poisoned the 13 pelicans and many other sea animals in the region, including sea lions that sometimes threatened beachgoers. The pelicans that took off Wednesday had made a full recovery at the Wetlands and Wildlife Care Center in Huntington Beach. The release was held just south of the pier, with community members invited to watch. "This is always a special moment — not just for our team and volunteers who worked tirelessly to save these birds, but for the community as well," said Debbie McGuire, executive director of the wildlife nonprofit. "Watching them take flight is a powerful reminder of why our work matters." Huntington Beach junior lifeguards volunteered at the event, according to a news release from the center, unzipping the cages on the beach to allow the birds to waddle out to shore. The event was mostly successful, according to Jaratt Dazey, the volunteer coordinator for the wildlife group. After the birds were released, most of them took flight — but two remained on the sand. The pair were taken back to the center's veterinary facilities for more treatment, Dazey said. "Overall, though, the release went well," he said. "They came out of the cages, they sat on the sand for a few minutes, and they all took off and flew together." The 13 pelicans had been poisoned by domoic acid, a toxin that occurs in algal blooms, which fish can consume. Marine animals can then become poisoned if they eat the contaminated fish, causing abnormal behaviors and seizures, Dazey said. This is the fourth year that a dangerous algal bloom has occurred in Southern California, but this year's was especially threatening, as the Los Angeles Times previously reported. A number of sickened sea lions were reported, with one surfer encountering one that he called "feral, almost demonic." The Marine Mammal Care Center in San Pedro reported at the end of May a possible end to "the longest, most toxic, and deadliest bloom we've ever experienced." The Wetlands and Wildlife Care Center rescued nearly 200 seabirds in total, which Dazey said was an abnormally large number. Levels of toxic algae along the coast of Southern California had begun to decline by early June. The toxic algae blooms can be caused by water and wind patterns as well as an overproduction of nutrients in the water, which can "overfeed" algae colonies and lead them to grow out of control, according to the National Ocean Service. The effects of climate change can also make algal blooms more frequent and more severe, according to the U.S. Environmental Protection Agency. Warmer water temperatures and higher carbon dioxide levels make the perfect habitat for algae breeding. Varying rainfall patterns and coastal upwelling both lead to more nutrient-dense waters, which only encourages algae growth. Sign up for Essential California for news, features and recommendations from the L.A. Times and beyond in your inbox six days a week. This story originally appeared in Los Angeles Times.
San Francisco Chronicle
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Brown pelicans are starving across California. Wildlife experts think they know why
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Adult pelicans are falling victim to toxic algae bloom. Now their babies are starving, too
Brown Pelicans across Southern California are filling up wildlife rehabilitation centers, either sick or starving — a dual crisis that wildlife experts believe could be linked to a massive toxic algae bloom. For the last month, hundreds of seabirds have been poisoned by domoic acid, a neurotoxin produced in harmful algal blooms that are consumed by filter-feeding fish, such as anchovies and sardines. The small fish aren't affected by the toxins, but many seabirds and marine mammals that feed on these fish are, and the sickness can be deadly. More than 100 area seas lions have been sickened and killed by the toxins over the last few months, along with several dozen dolphins that have died. But more recently, officials have also been responding to an influx of baby pelicans that aren't sick from the toxins — but are struggling to survive because they're extremely malnourished. Officials think the two phenomena are related: as more adult pelicans become sick, disoriented or die, that has left more and more baby pelicans to fend for themselves, leaving their nests prematurely when they don't yet know how to fish. It's just a theory right now, but experts say it would help explain the unprecedented number of starving baby pelicans turning up at wildlife rescue centers. 'It is unusual for us to receive such a high volume of chicks that are this young,' the International Bird Rescue, a global conservation organization that has one of its largest wildlife rescue centers in San Pedro, wrote on its website. 'Many are very young birds, not fully grown, and do not seem to understand how to feed themselves.' 'They are just starving and cold and sad,' said Rebecca Duerr, the center's director of research and veterinary science. At its San Pedro location, specialists were caring for 60 pelican babies as of Tuesday, with more arriving every day, Duerr said. That's in addition to about 50 other birds, many adult pelicans, that have come into the center over the last month because of the domoic acid poisoning. More than half of the birds have since died. 'We keep thinking it's over and then we get more birds,' Duerr said of the influx. There have been other times in recent years when the California brown pelican, a federally protected species, has been found dead or emaciated in high numbers, and other years when large numbers of animals have become sick from domoic acid as the algae bloom is naturally occurring. But the concurrent events this year are especially concerning to officials. Debbie McGuire, the executive director of the Wetlands and Wildlife Care Center in Huntington Beach, said she believes runoff from the Los Angeles firestorm likely elevated this year's bloom, as changes to nutrient levels in the ocean can increase the strength and length of the bloom. Officials don't yet know how long this bloom will last. Scientists have also found that human-caused climate change and warming ocean waters can also increase the growth of harmful algae blooms. McGuire said she can't remember a time in the last 20 years when her organization has treated this many birds with domoic acid at one time, noting that it is testing the center's workforce and capacity. 'My staff is burning the midnight oil for a month now,' McGuire said. 'It's hard on them — a lot of compassion and love goes into our work.' As of Tuesday, she said her team is caring for almost 60 brown pelicans, up seven from the day before — and most require intensive care, often including anti-seizure medication, IVs or lessons on how to feed themselves. Still, more than 50% of the pelicans they've taken in over the last month have died, as many birds sickened by domoic acid cannot be saved if the illness has progressed too far. 'If we get them quick enough we can save them, but time is of the essence,' McGuire said. The two centers said people have found the disoriented birds in unexpected and often hazardous locations over the last month, including on the 405 Freeway, on a terminal at LAX and near Amazon warehouses. The birds 'don't know where they are, they get confused, they fly inland,' McGuire said. Both rescue centers are also treating other seabirds ill from domoic acid, including the western grebes, brandt's cormorants and red-throated loons, but brown pelicans have most frequently been sick. Neither location has reached capacity yet, but McGuire said it's a concern if the situation continues at current rates. In a recent post on social media, the Wetlands and Wildlife Care Center asked for monetary donations or items on their wishlist to help ensure they can keep providing the care the animals need. The International Bird Rescue also has asked for donations to help it respond to what its called a seabird crisis. 'Stress is high as we care for over 52 pelicans, many of whom are not yet eating on their own, with no clear sign of slowing down soon,' the Wetlands and Wildlife Care Center said in its post. Officials warned beachgoers to use extreme caution when approaching any sick or dead animal, including seabirds. If you encounter one, the International Bird Rescue urged people to call the organization's bird helpline at (866) 767-2473. The Wetlands & Wildlife Care Center recommended people to call their local animal control office or find more information online. Times staff writer Summer Lin contributed to this report.
