Pounded into a keyboard by monkeys assisted by: The Thinker
The author writes:
So the main characters and audience alike get to finally see the eponymous "Pelican Ruby" in all its might and glory. This highly valued piece of chromium tainted piece of corundum got its name not because it's shaped like a pelican (it isn't), nor because it has the visage of a pelican within it á la "The Pink Panther" (it doesn't), but rather because it was found within the bill/beak of a rather omnivorous pelican named Bob, who currently resides at Chester Zoo with all the fish he can eat. Well, it makes more sense than naming it the "Bob Ruby" or the "Bigglesthwaite Ruby" (Ron Bigglesthwaite being the name of the zoo keeper who found the gemstone).