Here are a few options for a WordPress post_tag description for “鳥類圖鑑” in Traditional Chinese, ranging in formality and specificity:

**Option 1 (Concise & General):**

> 探索所有關於鳥類的知識！包含鳥類習性、種類、棲息地等等。

**Translation:** Explore all about birds! Includes bird habits, types, habitats, and more.

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

> 這裡集合了豐富的鳥類資訊，涵蓋不同種類、形態、聲音、以及牠們的生活環境與觀察方法。 適合所有鳥類愛好者！

**Translation:** This is a collection of rich bird information, covering different species, shapes, sounds, as well as their living environments and observation methods. Suitable for all bird lovers!

**Option 3 (Enthusiastic & Keyword-Rich):**

> 歡迎來到鳥類世界！這裡有詳細的鳥類圖鑑，介紹各種鳥類，包括雀鳥、猛禽、水鳥等等。分享觀鳥技巧、生態知識，一起欣賞大自然的奧秘！ #鳥類 #觀鳥 #雀鳥 #猛禽 #水鳥 #生態 #自然

**Translation:** Welcome to the world of birds! Here you’ll find detailed bird illustrated guides, introducing various birds, including passerines, birds of prey, water birds, and more. Sharing bird watching tips, ecological knowledge, let’s appreciate the mysteries of nature together! #Birds #BirdWatching #Passerines #BirdsOfPrey #WaterBirds #Ecology #Nature

**Option 4 (Formal & Educational):**

> 彙整詳盡的鳥類資料，旨在提供關於不同鳥類的分類、生物學特性、行為習性、分佈範圍等資訊，供學術研究及興趣愛好者參考。

**Translation:** A collection of detailed bird data, designed to provide information on the classification, biological characteristics, behaviors, and distribution ranges of different birds, for academic research and enthusiasts.

**Key Considerations When Choosing:**

* **Target Audience:** Who are you writing for? General readers or experts?
* **Content of the Tag:** What kind of content will be tagged with “鳥類圖鑑”? Is it general information, specific species profiles, birding tips, or something else?
* **SEO:** Consider including relevant keywords in the description (e.g., “鳥類,” “觀鳥,” “雀鳥,” etc.) to improve search engine visibility.
* **Brevity:** WordPress tag descriptions should generally be relatively concise.

I recommend choosing the option that best fits your target audience and the overall tone and purpose of your website. Good luck!