Neolitsea cassia Neolitsea cassia Neolitsea cassia is a species of tree in the Lauraceae family. It is endemic to Sri Lanka. It is known as "dawulu kurundu - දවුල් කුරුදු" or "kudu dawula - කුඩු දවුල" in Sinhala. Bark - thick, smooth, gray; W- light, hard, pale orange. Montane and rain forest understory. Wood - panelling; leaves- mucilaginous extract used in preparation of local sweet called "aasmi" ; Bark,leaves- medicinal. Straight stem with greyish bark and short, slender branches. The leaf flush is smooth, silvery copper, drooping, crowded at the ends of branchlets, and turn bright green when mature. Leaves are lanceolate
Cassia crossbill mentioned previously, the red crossbill had 10 different call types and the Cassia crossbill was call type 9. The Cassia Crossbill fledgling initially imitates its parents’ flight calls and eventually will modify its call to imitate their mate. Compared to the other call types, the Cassia crossbills songs will be more repetitive while using fewer syllables. The individual notes of the song are typically buzzier and will have multiple instances of silence in between call phrases. Their song consists of strained and sharp "chip" and "kip" calls. Occasionally when red crossbills forage, there will be overlap between different call types.