Dr. Peter Sharpe descends after returning a bald eaglet to the nest after taking measurements and banding its legs.

A bald eaglet is measured and banded in order to monitor him, before he is returned to the nest.

Dr. Peter Sharpe puts a band on the eaglet in order to monitor him.

A bald eagle, the father or mother of the baby eaglet the biologists will be studying, flies overhead. Dr. Peter Sharpe, a wildlife biologist who has spent years trying to restore the bald eagle to its historic habitat on the Channel Islands.

Dr. Peter Sharpe recoils a throw rope after attempting to get it through a “V” in two limbs near the bald eagle nest above, in order to climb to the nest.

Wildlife biologist Dr. Peter Sharpe and Laura Echávez, a seasonal tech with the Institute for Wildlife Studies, stop to look at a bald eagle’s nest as they hike down to the nest in a forest on Catalina Island.