Herman's height was never consistently enumerated throughout the course of the show; sometimes it was 7+ feet, sometimes 8+ feet. In this case, Eddie states the he's "about 9 feet tall."
The bird that Miss Thompson and Mr. Bradley observe flying over the Munsters' house--an Egyptian vulture (Neophron percnopterus)--is a small Old World vulture and the only member of the genus Neophron. It is widely distributed from the Iberian Peninsula and North Africa to India, and is known for using tools.
Eddie's teacher, Miss Thompson, was played by Pat Woodell, who was the original Bobbie Jo on "Petticoat Junction".
Willis Bouchey, who played Principal Bradley, played a judge on "Perry Mason" 23 times.