Kavaki, Lesvos,
Greece 39°
20' 45.1" N 26° 10' 15.4" E 24
May 2017
Singing
from scrub on a rocky coastal headland.
Song
composed of a semi-continuous 'purring' of low frequencing
phrases (~0.5-0.75 kHz), each 0.48-0.74 seconds
in length and composed of 14-21 elements (not distinguishable
to the human ear), each ~0.035 sec in length. Different
phrases either level, or ever-so-slight increasing or
decreasing in pitch.