Top bird is a male. The bottom bird is a female which is paler and grayer, lacking the iridescent gloss on the head of the male. This species is endemic to New Caledonia. Two subspecies are recognized of which this is the nominate characterized by its shorter tail, less shiny head in the male and paler female. Canon PowerShot SX60.
References:
Craig, A. & Feare, C. (2019). Striated Starling (Aplonis striata). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from https://www.hbw.com/node/60841 on 3 December 2019).
Dutson, G. (2011) Birds of Melanesia, Christopher Helm, London.