Arizona Game and Fish Department employees teamed up with nest watchers from the Southwestern Bald Eagle Management Committee to band and perform veterinary checks on a trio of eaglets at Lake Pleasant last month. This area is a long-time home to many eagles, with about half a dozen more nests in the area.
Arizona Game and Fish Nongame Birds and Mammals Biologist Jennifer Presler, top, carries a bag of eaglets as Eagle Field Project Manager Kyle McCarthy stands near their nest below along the cliffs of Lake Pleasant. The trio of birds was brought to the top of the mountain for veterinary testing and banding on March 31, 2025, in Peoria. (Photo by Alexis Heichman/Cronkite News)
PEORIA – Nested along the cliffs of Lake Pleasant is “America’s favorite” bird, the bald eagle. With about half a dozen nests populating the area, nest watchers were filled with excitement as hatchlings surpassed 5 weeks – the perfect age to band and measure.
“They’re old enough that they thermoregulate and they don’t have to have the adults protecting them in the nest,” said Kenneth ‘Tuk’ Jacobson, raptor management coordinator for the Arizona Game and Fish Department (AZGFD). “They’re also young enough that they haven’t quite figured out that they’re eagles, so they don’t want to jump on us.”
Arizona Game and Fish employees and local journalists take a boat on Lake Pleasant to observe the banding and veterinary checkups of a trio of eaglets on March 31, 2025, in Peoria. (Photo by Alexis Heichman/Cronkite News)
After a quick boat ride across the lake to an area closed to recreation users, AZGFD employees and nest watchers from the Southwestern Bald Eagle Management Committee hiked along the ridgeline and dodged cactuses and loose rocks to reach the eaglets.
“Eagles do not put their nests in the easiest places to get to,” Jacobson said of the climb to the nest. “But it is also definitely a rewarding experience to go through and work with these birds and see them respond so positively.”
Eagle Field Project Manager Kyle McCarthy repels down the cliff line along Lake Pleasant to collect a trio of eaglets from their nest for veterinary testing and banding on March 31, 2025, in Peoria.
A parent eagle circles the sky while a trio of its young are brought to the top of the cliff by Arizona Game and Fish employees for veterinary testing and banding at Lake Pleasant on March 31, 2025, in Peoria. (Photos by Alexis Heichman/Cronkite News)
Left: Eagle Field Project Manager Kyle McCarthy repels down the cliff line along Lake Pleasant to collect a trio of eaglets from their nest for veterinary testing and banding on March 31, 2025, in Peoria. Right: A parent eagle circles the sky while a trio of its young are brought to the top of the cliff by Arizona Game and Fish employees for veterinary testing and banding at Lake Pleasant on March 31, 2025, in Peoria. (Photos by Alexis Heichman/Cronkite News)
As AZGFD Eagle Field Project Manager Kyle McCarthy rappelled down to collect the trio of eaglets, a parent eagle circled the sky, squawking in confusion – though it never engaged.
After placing booties on the eaglets’ talons to prevent them from hurting themselves or the handlers, McCarthy covered the two males and a female with a falconry hood to calm them, then placed them in a bag for AZGFD Nongame Birds and Mammals Biologist Jennifer Presler to hoist up.
At the top, Presler and Jacobson banded each of the eaglets’ ankles, allowing the biologists to track them. They performed a variety of veterinary tasks, including measuring and disease testing, as nest watchers Griffin Lay and Audrey Jordon held them still.
Lay and Jordon have worked almost nonstop since the eggs hatched in February to monitor the eaglets’ growth from afar, in 10-day shifts with four days off in between. AZGFD coordinates the nest watching program to collect data on the local bald eagle population and educate the public on how to protect the species.
Left: Southwestern Bald Eagle Management Committee nest watcher Audrey Jordon holds an eaglet as Arizona Game and Fish Nongame Birds and Mammals Biologist Jennifer Presler places a band on its ankle atop a cliff overlooking Lake Pleasant on March 31, 225, in Peoria. Center: Arizona Game and Fish employees place a hood on top of an eaglet’s head to safely perform ankle banding and veterinary checkups atop a cliff overlooking Lake Pleasant on March 31, 225, in Peoria. This is one of three chicks, with more expected in the half dozen or so nearby nests. The hood calms the birds by tricking them into thinking it is bedtime. Right: Southwestern Bald Eagle Management Committee nest watcher Audrey Jordon holds an eaglet as Arizona Game and Fish Nongame Birds and Mammals Biologist Jennifer Presler measures its beak atop a cliff overlooking Lake Pleasant on March 31, 2025, in Peoria. (Photos by Alexis Heichman/Cronkite News)
The bald eagle teetered on the edge of extinction in the 1960s. Programs like this have aided a steady recovery.
“With all the conservation efforts making nest sites as productive as possible, we’ve been able to help see this bald eagle population grow immensely,” Jacobson said. “Nationwide, the bald eagle population has grown at about a 10% rate.”
Southwestern Bald Eagle Management Committee nest watcher Audrey Jordon holds an eaglet as Arizona Game and Fish Nongame Birds and Mammals Biologist Jennifer Presler places a band on its ankle atop a cliff overlooking Lake Pleasant on March 31, 2025, in Peoria. (Photo by Alexis Heichman/Cronkite News)
For those hoping to see them take flight, Jacobson advises recreation enthusiasts to bring binoculars to “watch from a distance and let them be eagles.”
“We spent a lot of work breeding this population up from 25 nests in the late 1970s to the 100 or so nests we have now” in Arizona, he said. “We want to make sure this population is as robust and stable as possible.”
An eaglet gets its first look around outside its nest after Arizona Game and Fish employees banded its ankles and performed a veterinary checkup atop a cliff overlooking Lake Pleasant on March 31, 2025, in Peoria. This is one of three chicks, with more expected in other nearby nests. (Photo by Alexis Heichman/Cronkite News)