Can You Go Birdwatching With a Monocular? The Trade-Offs of Hiking Light

Anyone who has gone birdwatching on a hike knows the conflict: to see birds well, you would ideally carry both binoculars and a spotting scope. But every extra kilogram in your pack means another kilogram-kilometer of load over a twenty-kilometer walk. That is where a few-hundred-gram monocular telescope becomes the compromise.

The advantage of a monocular for birdwatching is straightforward: it is light. A 10X25 or 8X32 monocular generally weighs two to three hundred grams, and it slips into a side pocket of your pack or even your pocket. When a target appears, you pull it out and take a look with one hand, completing an observation in just over ten seconds, far quicker than setting up a spotting scope.

The costs are equally obvious: monocular viewing lacks the stereoscopic depth and immersive feel of using both eyes, and staring through one eye while searching for birds tires you out faster than binoculars do. A monocular also usually has a narrower field of view, so scanning a patch of woodland for a target is somewhat less efficient.

For lightweight birdwatching with a monocular, a specification between 8X25 and 10X32 is recommended. At 8x, hand-holding is steadier and the field of view is wider, which suits scanning as you walk; at 10x you see finer detail, but shake is magnified too, so a simple monopod makes things much more comfortable. Going higher is not advisable, since in a lightweight setup the shake will keep you from making out any detail.

As for technique, monocular birdwatching favors locating first, then raising the optic: lock onto the bird with your naked eye, note a reference point beside it, such as a particular horizontal branch, then raise the monocular and aim at that spot. This habit greatly reduces the frustration of not being able to find the bird in the lens.

If your hiking route is mainly open ground and waterside, and you are mostly watching waterbirds and distant raptors, a monocular may even suit you better than binoculars. Waterbirds keep their distance, and magnification of 10x or more often makes up for it. If you are chasing woodland birds in dense forest, though, binoculars still rule.

In short: birdwatching with a monocular on a lightweight hike is entirely workable. The key is accepting the trade-off of seeing clearly but seeing slowly, choosing a low-magnification specification you can hold steady, and practicing the basics of locating first and raising the optic second.