Carolina wren

Patryk, 

 I have never been to your region of the world so I have no idea what the call of this tiny creature sounds like, but I am trying hard to imagine it.  I can almost see the tiny bits of sound travel from its beak upward and to the left - whoops! they are hitting the top of the picture.  It just seems that the notes of song need more space to travel before being cut short.  It occurs to me that a vertical format picture would have given it the space it needed.

Jerry