Links
- Magelan corporation - Leading Incoming Tour Operator for Serbia and Balkan Countries
- Serbian Adventures
- VisitSerbia - online reservation system for accommodation in Serbia
- National Tourism Organisation of Serbia
- Danube Tourism Cluster Istar21
- Association for Development of Tourism in Vojvodina
- Project The Wealth of Diversity
- Danube Sales Manual
- Die Donau – The Danube
- Srbija na dlanu – Serbia in your hands
- Provincial Secretariat for Environmental Protection
- Tourist Organisation of Vojvodina
- Tourist Organisation of the City of Novi Sad
- The Urban Birder
- Croatia Birding
- Branta Tours - Specialist in the Authentic East (Birding Trips in Bulgaria, Romania, Hungary, Belarus, Ural, Siberia, Azerbaijan and beyond)
- Lee Valley Regional Park Authority
- Dabas Tures (tours of nature investigation in and outside of Latvia)
- Northern Ireland Ornithologists' Club
- Ukrainian Birdwatching Centre
- Birds in the Lauwersmeer
- Wildlife Sanctuaries in India
