Yellow-vented Bulbul (Pyncnonotus goiavier): This is an omnivorous species. I have seen these birds picking off caterpillars from infested plants and feeding on ripe fruits in gardens. They are often seen flying or foraging in pairs. These two were finishing off a bullock's heart (or custard apple, Annona recticulata) in my garden. The species occurs from south Myanmar to the Philippines and Java.