We had one on our balcony this year. We live next to a strip of woods with a brook (platsbeek) and have a couple of bird feeding systems. It’s supposed to be a common bird here but we have only seen it once.

The wren gets to have his/her tail in the picture, but the long-tailed tit doesn’t. That seems unfair.

Plus the wren gets a day named after it. There’s clear evidence of bias here.