Bald Eaglets Driven From Their Nest on the Northern Channel Islands
Contact: Yvonne Menard, 805-658-5725
Yesterday two seven-week-old bald eagle chicks were unexpectedly taken from their nest at Pelican Harbor on Santa Cruz Island by an attacking sub-adult bald eagle.
Anxious eagle enthusiasts watched intently via the Channel Islands Live EagleCAM as the young eaglets attempted to defend themselves. Within minutes of their first encounter with the invading sub-adult bald eagle one of the chicks was snatched from the nest. About an hour later the second chick was knocked out of the nest falling 30 feet below—the entire episode left eagle watchers devastated.
“This is a rare occurrence, I have never seen anything like this in my career as an eagle biologist,” said Dr. Peter Sharpe with the Institute for Wildlife Studies (IWS). “The EagleCAM allows us and enthusiasts to observe live bald eagle behavior and learn more than previously known.”
As the incident unfolded, EagleCAM watchers quickly notified IWS biologists who were nearby, having just returned from conducting eagle surveys offshore. A team of four biologists briskly hiked out to the nest site and found the two young bald eagle chicks under brush on the ground below the nest. A quick assessment revealed that one of the young birds suffered a possible broken wing and the other a cracked bill.
To calm the birds, the biologists placed hoods over their heads and carefully swaddled them for transport to a temporary care facility on the island. Today the pair are being flown to a veterinary facility in Orange County to fully assess the extent of their injuries.
As IWS biologists arrived at the nest site yesterday they observed one of the parent bald eagles in aerial combat with the sub-adult intruder. Over the next few days they will be analyzing transmitter data hoping to identify which of the 8 to 12 sub-adults that reside on the northern Channel Islands is responsible for this attack to better understand this unusual behavior.
Today, nearly 40 bald eagles are in Channel Islands National Park as a result of a restoration program that released 61 eagles between 2002 and 2006. This spring there were four nests established on the northern Channel Islands, three on Santa Cruz Island and one on Santa Rosa Island. Only two of the nests produced chicks, including this nest at Pelican Harbor. On Catalina Island five nests have produced seven young eaglets this spring
For More Information
To see video of the nest incident go to: www.nps.gov/chis
The bald eagle restoration efforts on the Channel Islands are funded by the Montrose Settlements Restoration Program (MSRP), a multi-agency government program dedicated to restoring natural resources harmed by DDTs and PCBs released into the environment. Further information on MSRP can be found at: www.montroserestoration.gov.
Did You Know?
The endemic island deer mouse is the only native terrestrial mammal common to all the Channel Islands and is larger than mainland deer mice. Densities of deer mice on the islands can be greater than anywhere else in the world. This makes you happy if you're an owl, but not if you're a camper.