Bird namesEnglish/한국어Passeriformes / HirundinidaeBarn Swallow제비Hirundo rustica보령--외연도(Boryeong--Oeyeon-do(island)) · 2026-05-09Photographs보령--외연도(Boryeong--Oeyeon-do(island)) · 2026-05-09서산--마룡리 농경지(Seosan--Maryong-ri Rice Paddy) · 2025-09-07서산--마룡리 농경지(Seosan--Maryong-ri Rice Paddy) · 2025-09-07서산--마룡리 농경지(Seosan--Maryong-ri Rice Paddy) · 2025-09-07서산--간월호 북(Seosan--Ganwol Lake/Seosan Lake A-North) · 2025-08-17서산--간월호 북(Seosan--Ganwol Lake/Seosan Lake A-North) · 2025-08-17보령--외연도(Boryeong--Oeyeon-do(island)) · 2025-04-18보령--외연도(Boryeong--Oeyeon-do(island)) · 2025-04-18보령--외연도(Boryeong--Oeyeon-do(island)) · 2024-05-03Related checklists09 May 2026보령--외연도(Boryeong--Oeyeon-do(island))↗07 Sept 2025서산--마룡리 농경지(Seosan--Maryong-ri Rice Paddy)↗17 Aug 2025서산--간월호 북(Seosan--Ganwol Lake/Seosan Lake A-North)↗18 Apr 2025보령--외연도(Boryeong--Oeyeon-do(island))↗03 May 2024보령--외연도(Boryeong--Oeyeon-do(island))↗