Phenology and feeding habit of birds in dry evergreen forest, Khao Ang Ruenai wildlife sanctuary, Changwat Chachoengsao
1997
Phornchai Wisutthacharn
Study was carried out in a lowland Dry Evergreen Forest at Khao Ang Ruenai wildlife sanctuary, Chachoengsao province. It was undertaken between June, 1995 and May, 1996. Its aim was to study tree phenology and identify the species of birds that utilize food plant from those trees and to assess suitable tree species for forest rehabilitation or reforestation, using suitability as bird food as a factor. 22 species of trees in 13 genera, 12 families, were food for birds; the shedding of leaves had its peak in December and February; the flushing peak was in March and the flowering peak in May. Unripe fruits were most abundant in April and ripe fruits in May. At least 121 species of birds were found in the study area; out of those 34 species in 25 genera, 12 families, 6 order, were observed feeding on nectar and ripe fruits from the trees on the study area. Pycnonotus melanicterus (Gmelin) was the bird which could use the largest number of food plant species, followed by others, such as Megalaima faiostricta (Temminck), Pycnonotus finlaysoni Strickland, Irena puella (Latham) and Anthracoceros albirostris (Shaw & Nodder); the tree species which had the largest number of birds feeding on them were Ficus consociata Bl. and Ficus drupaceae Thunb. If we take suitability as bird food as a factor, the most suitable tree species for forest rehabilitation of reforestation were in genus Ficus, family moraceae.
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