Common Nightingale Luscinia megarhynchos is a very common bird throughout much of the region. It is replaced by close relative Thrush Nightingale in the very east and north, and a zone of overlap occurs in a roughly NW to SE direction. A visitor, most arrive in March-April and leave in August-September. Though very common locally it is a bird that is more often seen than heard. This fine photo of a bird in full song was taken in April 2009 at Skradinski Buk, Krka NP, Croatia, by Alan Outen.