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 It is believed that crossbills used the public information of different calls to forage. This eventually led to assortative flocking when crossbills would follow vocalizations that would provide them the easiest route to food. This can be another mechanism to how the Cassia crossbill diverged from the red crossbill. The Cassia crossbill and the other red crossbill call types will strongly associate with their own call types. Between 2001 and 2006, less that 1% of Cassia crossbills paired with other call types. Compared to the red crossbill call types, which are opportunistic breeders throughout most of the year, the Cassia