Appears to be new to the gallery. Image added to Opus. These kingfishers were common in a variety of wooded habitats. We often saw them perching on power lines. This species has recently been split from the widespread Collared Kingfisher (T. chloris) also known as Mangrove Kingfisher or White-collared Kingfisher. Older references place these birds in the genus Halcyon. The new split is based on a genetic study by Andersen et al (2015) who found that the Mariana Kingfisher is actually more closely related to the Beach Kingfisher (T. saurophagus) than to Collared Kingfisher. Beach and Mariana both look quite different from Collared Kingfisher in that they are mostly white headed. As seen here, Mariana Kingfisher's crown and nape are white contrasting with dark lores, ear-coverts and a horizontal nape mark. Some birds showed more extensive dusky crown streaking, possibly a sign of immaturity. This split has been accepted by Clements et al. (2019) and Gill & Donsker (2019), but not by Woodall (2019) or Christides et al (2018). The new taxonomy gives the Marianas a new endemic. There are three subspecies of which Saipan birds are representative of the paler nominate race.