Why would a bird peck at the same window every day?

A common explanation is that the glass is reflecting the bird’s own image or the surrounding greenery. It may treat the reflection like a rival and keep returning to challenge it. The regular timing could line up with when the light makes that reflection strongest.

Try covering or changing the reflective area from the outside if you can do so safely. A screen or visible window markers can help make the glass less mirror-like. If the visits continue, a clear photo from indoors may help with identifying the bird and narrowing down what’s going on.

Could also be a food source or a bug near that exact spot, rather than anything unusual. Check the outside of the window and nearby trim for insects, and notice whether there’s a feeder or plant close by.

I’d start with a temporary outside screen or other visible barrier over that section. Don’t tap on the glass or try to scare it off up close. If there’s a nest nearby, give the area space.

The schedule can feel striking, but it doesn’t necessarily mean the bird is keeping track of the clock. Daylight, reflections, and familiar feeding routes can all produce a routine. It may also be a bird returning to a spot it has already investigated, though you can’t be sure it’s the same individual without identifying it.

If you can, note the time, weather, and what the window reflects, then change one thing at a time. That may reveal a pattern without disturbing the bird.