Sunbird and Spiderhunter: They come from family of small birds, very bright in colour (especially male) forward curved bill. They are distant relatives of Hummingbirds and plays a very important role in pollination.
They are very lightweight birds and keep bumping flower to flower and creates a delightful sight specially in morning hours. With similar size and behavior an another beauty with White ring around eye is called “White-Eye“
Purple and Purple rumped Sunbird along with Oriental White-Eye are the most common ones found in most parts of India and rest are a rare sight on long Himalayan range.
Bee Eater : They are again a small-medium sized bird and are exactly as name suggests. They can be seen hunting in flight and mostly feed on bees and flies or for that matter any similar sized insect. Green Bee-eater is only common species which can be seen at ease and also some variety also do migrate.
Fly catcher : There are hundreds of species who feed on flies but around 30 odd species of bird is been given a surname as Flycatcher and the most famous among is Asian Paradise Flycatcher. Some are migratory but most are resident but not usually found on open fields. Himalayan jungle are where 20 odd species can be spotted.
There is very slight difference between them and Thrushes and Warblers. Some flycatchers looks closely similar with slight difference in plumage.
List of Sunbird, Flycatcher, Bee-eater and Spiderhunters found in India