448,000 views.
5 years old.
It's of pikas making their warning sounds up in the Selkirk Mountains.
Unfortunately, it was done with my old SD camera (420p). And I was so naive at the time, that I watched a tutorial video on how to render videos for Youtube and the tutorial instructed me through the process of rendering my 420 video at 360. Sigh. But it still gets liked a lot. Many people have used the footage, including the Discovery Channel.
It gets virtually no promotion from Youtube. Almost all of the views are from people searching for pika videos or as a suggested video from other pika videos. It gets no views from searches for "cute animals", nothing. It's never gone viral or even close. Just steadily gets views day after day. Which is okay. : D