Based on the provided story, I have evaluated the Tragedy Degree and Comedy Degree according to the given criteria. The story revolves around the character Avery, a bird messenger in a forest ecosystem, who successfully mediates a potential conflict between beavers and herons. 

Here are the evaluations:

1. **Tragedy Degree:** The story does not contain any tragic elements. There are no emotional setbacks or moments of profound sorrow. The focus is on the responsibility and efforts to maintain harmony.
   
2. **Comedy Degree:** The story also does not contain any strong comedic elements. While it has a positive and harmonious resolution, it lacks explicitly comedic plots or moments designed to evoke humor or laughter.

Given these observations, I have scored the story as follows:

```json
{
  "TragedyDegree": 1,
  "ComedyDegree": 2
}
```

Explanation:
- **Tragedy Degree (1):** The story has almost no tragic elements.
- **Comedy Degree (2):** The story has a harmonious and mildly uplifting ending, but it does not feature significant comedic aspects. It's more about maintaining balance and cooperation rather than generating laughter.
