Collocalia Esculenta Species
Its popular name is Grass Nest as it uses grass with its glutinous strands as cement for making its nest. The nest is normally brownish in colour with the glutinous strands content at about 5-15% in its unprocessed form. This swiftlet nest is highly demanded for restaurant consumption and is sold most popularly as strips or in crumbs and cake form.
C.Esculenta has a glossy, darkish blue-black colour and is smaller than C.Fuciphaga and C.Maxima measuring only about 10 cm in length.
All these species has slightly parted tails. Good quality nests from these species can be distinguished by the firm, white basal attachments and a comparatively large proportion of nest-cement with few feathers or grasses in the nest-cup, a thick body and in perfect shape, form as well as colour.
