I see the bird most often on a roof ridge starting about 7 a.m. until well into the afternoon. It may fly away for a few minutes, but always returns and even chases other small birds away from its favourite spot.
Open country with a few woods, a restored river with a floodplain and a few farms.
I thought this might be a common nightinggale, but what makes me unsure is the song (see video here: http://youtu.be/aCg0UGxE0vE). It sings only these few notes, repeated every few seconds on and off during the day.