Complex sentence: The nesting bird population is also noted for its great numbers and diversity: between 25,000 and 40,000 pairs belonging to 15 species, making the largest colonies of of water birds in West Africa (IUCN Technical Evaluation, 1989).
Split into simpler sentences: The nesting bird population is also noted for its great numbers and diversity. Between 25,000 and 40,000 pairs belonging to 15 species, making the largest colonies of of water birds in West Africa (IUCN Technical Evaluation, 1989).