🌐EnglishEnglishDeutschFrançaisSvenskaTürkçeРусскийEntityQ1545575· pop 11· linked from 27 articlesRossitten Bird Observatoryworld's first ornithological observatoryConnectionsRussiaCountryGermanyCountryPolandCategoriesAnimal welfare organizations based in RussiaBaltic SeaBird migrationBird observatoriesEast PrussiaKaliningrad OblastOrganizations disestablished in 1946Ornithological organizationsScientific organizations established in 1901