Here are a few options for the WordPress post tag description, with varying tones and levels of detail, all in Traditional Chinese:

**Option 1 (Concise and Simple):**

> 灰鷹壽命：探索灰鷹的生命歷程，包括牠們的預期壽命與影響因素。

(**Translation:** Gray Hawk Lifespan: Explore the life cycle of gray hawks, including their expected lifespan and influencing factors.)

**Option 2 (Slightly More Informative):**

> 灰鷹壽命：了解灰鷹的平均壽命，以及影響牠們長壽的因素，例如棲息地、飲食與疾病。

(**Translation:** Gray Hawk Lifespan: Learn about the average lifespan of gray hawks, and the factors that affect their longevity, such as habitat, diet, and diseases.)

**Option 3 (More Detailed and Engaging):**

> 灰鷹壽命：揭開灰鷹的神秘生命，探討牠們在野外的壽命長度，以及在不同環境下的差異。同時，我們也將探討影響牠們生存的關鍵，例如環境污染、食物供應等。

(**Translation:** Gray Hawk Lifespan: Uncover the mysterious lives of gray hawks, exploring their lifespan in the wild and differences across various environments. We will also discuss key factors that affect their survival, such as environmental pollution and food supply.)

**Option 4 (Focusing on Research and Conservation):**

> 灰鷹壽命：深入研究灰鷹的生命週期，有助於保育工作。此標籤涵蓋有關灰鷹壽命的研究、數據分析，以及相關保育措施。

(**Translation:** Gray Hawk Lifespan: In-depth research on the life cycle of gray hawks contributes to conservation efforts. This tag covers research, data analysis, and relevant conservation measures related to the lifespan of gray hawks.)

**Which option you choose depends on your overall blog’s style and target audience. Consider:**

* **Your target audience:** Are they casual readers or experts?
* **The content of your posts:** Does the description need to accurately reflect the type of content you usually produce for this tag?
* **SEO implications:** Longer descriptions with relevant keywords can sometimes help with search engine optimization.

Choose the description that best suits your needs! Good luck with your blog!