Nest-trees
Thirty-six nest-trees were located of which 11 were Great Hornbill nest-sites (one
cut down), 6 were Oriental Pied Hornbill sites (one cut down), 17 were Wreathed
Hornbill sites (1 uprooted in a storm, 2 cut down) and 2 were Rufous-necked
Hornbill sites (1 old and inactive). Of these, 19 were located in Arunachal
Pradesh and 15 in border areas of Assam. Twelve nests were in dense forest, 9 in
open forest and 14 in highly degraded edge forest.