Experts explain why Big Bear bald eagle Shadow is unlikely to replace Jackie, who is undergoing medical treatment for severe anemia, with a visiting young eagle that has been frequenting the nest.

As Big Bear beloved bald eagle Jackie continues to receive critical care, we're learning more about a new eagle that is visiting her habitat.

Friends of Big Bear Valley said a subadult bald eagle has been repeatedly spotted near Jackie and Shadow’s territory in recent days, prompting questions from eagle-cam viewers. The sightings come as Jackie remains under intensive veterinary care following a ground altercation and subsequent rescue earlier this month.

While she's recovering, her two young eagles, Sandy and Luna, are gaining more independence. And they have some company. Big Bear Lake is the perfect place for immature eagles to learn to stretch their wings, hunt, and become independent adults. It is full of mature trees and surrounding forest to live in, and the lake is teeming with fish.

(KRON) — OpenAI co-founder Greg Brockman and his wife Anna donated $5.5 million to round out the $10 million-fundraising goal that will ensure the preservation of Moon Camp, home of the beloved Big Bear Valley bald eagle pair Jackie and Shadow.

There have been barrage of concerned comments and well wishers online for beloved bald eagle Jackie as she recovers.

As Jackie remains in intensive care, a photo was shared showing her mate Shadow perched beside a nearby subadult eagle on Wednesday.