Paul has a theory as to what is happening to the koi in the lake. What is it?
Tangerine Novel Questions by Dani Devito

Paul stated that the "osprey" (a large fish-eating bird) was the reason why the koi fish were missing in the lake.

Explanation:

The question above is related to the story entitled "Tangerine," written by Dani Devito.

That event above happened when Paul's mom hosted another meeting. This time, the people were concerned about the missing koi fish in the lake. These fishes were not supposed to be removed from the lake and they cost a lot of money. The people suspected that someone was stealing the koi fish. However, Paul burst out that it was the doing of the ospreys. People were very surprised of his theory.

So, this explains the answer.

1. will, there be upcoming seasons the first one was really short