It’s something you don’t realize about bald eagles until you’re two feet away from one: just how big they really are. It was a Thursday afternoon at Northwest Trek, and the veterinary clinic had a very special patient. Sequoia, a recently-arrived bald eagle, was getting a wellness exam in preparation for joining her fellow eagles Salish and Sucia in the new Eagle Passage exhibit. Sequoia was already under anesthetic, and keeper Wendi Mello carried her into the clinic, cradled like a child in gauntleted arms. Rescued from the wild with a shoulder injury that prevents her from fully flying, Sequoia …