Younger sister Gizmo joined Sunny taking to the sky over Big Bear Lake for the first time on Saturday morning.

"Fledge watch" began around May 13, as bald eagles are usually between 10 to 12 weeks old when they prepare to leave the nest. Gizmo and Sunny will remain in the habitat for one to three months after fledging, and FOBBV said they will likely be in and out of the nest during this time.

Both of Big Bear’s famous bald eaglets have left the nest. Why now: Gizmo, the younger eaglet, took her first flight on Sat., June 7. Why it matters: This is a bittersweet moment for the tens of thousands of fans who’ve regularly tuned in — day and night — since Jackie laid three eggs in late January.