This is likely due to several factors:
* Lack of Official Data: The area of the reserve might not be officially documented or publicly available.
* Changing Boundaries: Wildlife reserves often experience changes in their boundaries over time, making it difficult to maintain precise data.
* Lack of Consistent Mapping: The area might not be clearly defined or mapped in a way that allows for precise measurement.
To find more information about the Ferlo Nord Wildlife Reserve, you could try:
* Contacting the Senegalese Ministry of Environment: They may have official data on the reserve's area.
* Reaching out to conservation organizations working in the area: Groups like WWF or BirdLife International might have information.
* Searching for academic research or publications: Researchers studying the Ferlo area might have documented the reserve's size.
Remember to be persistent in your search and to verify the information you find from multiple sources.