Photo 33818516, (c) hannahsun99, some rights reserved (CC BY-NC)

Attribution © hannahsun99 some rights reserved Uploaded by hannahsun99 Source iNaturalist Associated observations Photos / Sounds What Ring-billed Gull (Larus delawarensis) Observer hannahsun99 Date March 27, 2019 03:15 PM EDT Place 193 Moody St, 沃尔瑟姆, MA, US (Google, OSM) Date Added March 31, 2019 12:05 PM EDT 3 IDs Research Grade View Sizes small medium large original