Photo 12310813, (c) Andy Bridges, some rights reserved (CC BY-NC), uploaded by Andy Bridges

Attribution © Andy Bridges some rights reserved Uploaded by andybridges Source iNaturalist Associated observations Photos / Sounds 2 photos What Gray-backed Tern (Onychoprion lunatus) Observer andybridges Date July 2013 Place Hawaiian Islands National Wildlife Refuge, Honolulu County, US-HI, US (Google, OSM) Date Added December 10, 2017 10:30 AM MST 3 IDs Research Grade View Sizes small medium large original