Krosno Odrzańskie

Sister cities

• Schwarzheide
• Bremervörde
• Eemsmond

History

The town was first mentioned as Crosno in 1005, when Duke Bolesław I Chrobry of Poland had a fortress built here in the course of his armed conflict with Emperor Henry II and the West Slavic Veleti confederation. Due to its strategic location as a point of passage across the Oder, The adjective Odrzańskie after the Oder river, upon which the town is situated, was added for distinction from other settlements of the same name in Poland, most notably the town of Krosno. From 1975 to 1998, it was administratively located in the Zielona Góra Voivodeship.

Most-observed species

• Mallard

  Anas platyrhynchos Linnaeus, 1758 · Aves
  625
• Hooded Crow

  Corvus cornix Linnaeus, 1758 · Aves
  533
• Gray/Purple Heron

  Ardea cinerea Linnaeus, 1758 · Aves
  520
• Mute Swan

  Cygnus olor (J.F.Gmelin, 1789) · Aves
  497
• Great Cormorant/European Shag

  Phalacrocorax carbo (Linnaeus, 1758) · Aves
  496
• Eurasian Blue Tit

  Cyanistes caeruleus (Linnaeus, 1758) · Aves
  491
• Great Tit

  Parus major Linnaeus, 1758 · Aves
  453
• Graylag Goose

  Anser anser (Linnaeus, 1758) · Aves
  442

Most recent

• M 4.2 — 2026-05-03
  6 km E of Radwanice, Poland
• M 4.2 — 2026-01-21
  5 km E of Polkowice, Poland
• M 4.1 — 2025-12-08
  4 km NNW of Polkowice, Poland
• M 4.5 — 2025-10-21
  1 km WSW of Grębocice, Poland
• M 4.5 — 2025-10-18
  2 km SW of Polkowice, Poland
• M 4.3 — 2025-08-13
  4 km NNW of Rudna, Poland