Wren

A wren
vanished
into the box
I meant for blue–tits,
reappeared
beak–first
to launch
his song.
I was so near
I could detect
vibrations
in his throat,
saw how his beak
lifted to savour
his own power

If I could catch
in words
a vehemence
proportionate
to my size
I could astonish
the world!