evidence: Birdwatching Trips To Doi Lang: If you are visiting northern Thailand then Doi Lang is a must-visit location for birders. location, coupled with a visit to Doi Inthanon and/or Doi Lang. At any time of year a good selection of colourful birds can be seen and in the dry season a whole range of migrants visit this location. [...] Birdwatching Trips: Doi Lang is a must-visit location on birdwatching trips to the north of Thailand. It is worth including a visit to Doi Ang Kang in short trips to the north and on longer tours of the country.