Four nests of black drongo Dicrurus macrocercus were recorded at sites-II and III (Tables II and V; Fig.
Table V.- Vegetation preference of black drongo (Dicrurus macrocercus) and black kite (Milvus migrans) for nesting at Pabbi Range Kharian.
Among six different avifauna species, maximum mean clutch size was recorded for common myna, black drongo and Indian robin (three in each case), followed by common crow (2.92 +- 0.38), black kite (2.33 +- 0.33), and least by red turtle dove (1.5 +- 1.00) (Table VII).
Maximum mean hatching success was shown by black drongo (88.86 +- 11.13) at four different sites, followed by common myna (77.75 +- 11.12), common crow (62.80 +- 11.65), black kite (38.86 +- 20.01) and least by red turtle dove (16.65 +- 9.22).
Before considering the key features used to separate this bird from Black Drongo the age of the bird needed to be established.
Bearing this in mind, the following features were used to eliminate Black Drongo:
* Fairly bright red eye (although adult Black Drongo can show a reddish eye, this would be highly unlikely in a 1st winter bird)
Monachus sp., never showing the more smoothly rounded 'Alpine Chough-like' crown of Black Drongo.
Food analysis of fifty-nine specimens of four bird species (Cattle egret, bank myna, crested lark and black drongo) was studied with special reference to the livestock at Balloki Headworks during different months of the study.
It provides nesting and roosting places for many bird species such as pied bush chat, Indian prinia, black drongo, common babbler and jungle babbler.
Black drongo is a bird of open country, usually perching on telegraph wires or attending the grazing cattle.
A black drongo weighing 51g may consume at least one sixth of its own weight of insect food.