Here are a few options for a description of a WordPress post tag with the title “鳥類大小” (Bird Size) in Traditional Chinese, ranging from concise to slightly more descriptive, depending on your needs:

**Option 1: Concise & Clear (Best for general use)**

> 關於不同鳥類體型大小的資訊和討論。
>
> *Translation: Information and discussion about the size of different bird species.*

**Option 2: Slightly More Informative**

> 探索鳥類大小的各種面向，包括翅膀長度、體重和體型比較。
>
> *Translation: Explore various aspects of bird size, including wingspan, weight, and size comparisons.*

**Option 3: Engaging & Descriptive (Best if you want to attract attention)**

> 想知道麻雀有多大嗎？或者鷹有多重嗎？在這裡找到關於鳥類大小的精彩資訊，包括尺寸、形狀和其他有趣的事實！
>
> *Translation: Wonder how big a sparrow is? Or how heavy an eagle is? Find fascinating information about bird size here, including dimensions, shapes, and other interesting facts!*

**Option 4: Focus on Specific Content (If your content is focused)**

> 涵蓋特定鳥類品種、鳥類大小測量方法，以及牠們在生態系統中的作用。
>
> *Translation: Covers specific bird species, bird size measurement methods, and their role in the ecosystem.*

**Explanation of the Choices:**

* **Simplicity:** Option 1 is perfect for a quick explanation without being overly verbose.
* **Details:** Option 2 and 3 provide a little more context about what the tag covers.
* **Targeted:** Option 4 is great if your content is highly focused.

**Recommendation:**

Choose the description that best reflects the *content* you’re tagging. If you’re just writing generally about bird size, Option 1 or 2 is probably best. If you have a variety of content, Option 3 might draw more clicks. If you are targeting specific topics like measurements and eco-systems, choose Option 4. Remember context is everything. Good luck!