Sinharaja Rainforest is home to 48 species of birds including 12 endemics thus presenting birdwatchers with an astonishing range of avifauna to observe. The Sinharaja Rainforest will leave a nature enthusiast quite bedazzled. Birdwatchers particularly will have an astonishing range of avifauna to observe. The rare birds present include the Red-faced Malkoha, the Sri Lanka Blue Magpie, the Ashy-headed Babbler and the White-headed Starling, the Green-billed Coucal is considered the rarest. Perhaps the most interesting feature is the presence of mixed-species foraging bird flocks, which is a phenomenon usually only found in rain forests. 100 flocks have been systematically observed, and studies have revealed that some flocks contained 48 species including 12 endemics.