Jackie the Bald Eagle

Beloved California bald eagle Jackie is dead ... just weeks after suffering a brutal attack carried out by two other eagles ... ending weeks of hope that the iconic Big Bear bird would pull through.

The Ojai Raptor Center announced Monday that Jackie died early Monday morning after more than three weeks of intensive medical treatment.

The facility shared a remembrance photo of Jackie on Facebook, writing, "Our team is heartbroken. It has been an extraordinary privilege to care for her."