Young Bluethroats look in the first months of their life not very attractive. This is in contrast to their adult parents and in particular father. They seem evil in the world to watch. Or would that be in the case of the young in the picture below because of the little head full of annoying ticks? 

Blauwborst / Bluethroat Luscinia svecica, juveniel / juvenile, De Cocksdorp, Texel, 02-06-2014