The male Bluethroat (Luscinia svecica) has an iridescent blue bib edged below with successive black, white and rust coloured borders.
Females usually have just a blackish crescent on an otherwise cream throat and breast.
Newly fledged juveniles are freckled and spotted dark brown above.
The Bluethroat (Luscinia svecica) consists of (at least) 10 subspecies that differ most strikingly in the ornamental colour pattern of the male throat.
The subspecies Luscinia svecica svecica (Red-spotted Bluethroat) of northern Europe and northern Asia, has a red spot in the centre of the blue throat.
The subspecies Luscinia svecica cyanecula (White-spotted Bluethroat) of southern and central Europe, has a white spot in the centre of the blue throat.
The subspecies Luscinia svecica magna in Turkey has no central spot.
A White-spotted Bluethroat. Carrusqueira, Sado Estuary Nature Reserve, Portugal, 1 October 2021