Photo 77118500, (c) Mario Vega Pérez, some rights reserved (CC BY-NC), uploaded by Mario Vega Pérez

Attribution © Mario Vega Pérez some rights reserved Uploaded by mario_vega Source Natusfera Associated observations Photos / Sounds What Western House Martin (Delichon urbicum) Observer mario_vega Date May 9, 2014 07:42 AM CEST Place 28190 Montejo de la Sierra, Madrid, España (Google, OSM) Date Added June 6, 2020 02:09 AM CEST 2 IDs Research Grade View Sizes small medium large original