Waterbirds habitat mapping using unmanned aerial vehicle in Belawan Mangrove Ecosystems, North Sumatera, IndonesiaAchmad Siddik Thoha, Laely Nur Fauziyah, Erni Jumilawaty and Mochammad Akbar MarwanBIO Web Conf., 159 (2025) 02005DOI: https://doi.org/10.1051/bioconf/202515902005