The winter wren is certainly one of the most thriving bird species here in Kiel, it’s as if every little garden here has its own winter wren territory. You hear them singing everywhere, no matter where you are downtown and if there is only a little lonely bush somewhere, be sure to hear a winter wren sing in it. Amazing.
Well, so I wasn’t surprised when I heard one just outside my living room window yesterday. That’s the one:

And that’s a sonogram of a winter wren’s song, it's so powerful that your ears almost hurt sometimes. And from this little bird!

Listen to the corresponding sound
here.
And that’s the tree outside my living room window, I am afraid I don’t really know what kind of tree that is…

Bird of the day:
Gärdsmyg -- Zaunkönig -- Winter Wren -- Troglodyte mignon -- Winterkoning (NL) --
Troglodytes troglodytes