The main characters are as follows:
Harry Potter
Hermione Granger
Ron Weasley
Cedric Diggory
Viktor Krum
Fleur Delacour
Albus Dumbledore
Draco Malfoy
Rubeus Hagrid
I would say using a comma to combine the two sentences.
Answer: I think the answer is most likely the second one
The narrator's point of view allows the reader to know that both Heron and Hummingbird are satisfied after eating many fish.
Explanation: