Photo 833350, (c) Mark Rosenstein, some rights reserved (CC BY-NC), uploaded by Mark Rosenstein

Attribution © Mark Rosenstein some rights reserved Uploaded by maractwin Source iNaturalist Associated observations Photos / Sounds What Blue-gray Gnatcatcher (Polioptila caerulea) Observer maractwin Date May 5, 2014 08:26 AM EDT Place Middlesex, Massachusetts, United States (Google, OSM) Date Added May 5, 2014 10:36 AM EDT 2 IDs Research Grade View Sizes small medium large original