Olive-backed Sunbird Nectarinia jugularis

Its small but noisy with a bird calls sounded like "che-weeet.. sweeet.. sweet... "
They like pollinators. i saw they like yellow bell flowers.
But i did caught them eating small insects. Like spiders.
Sunbirds - Family Nectariniidae

Lens i used is tamron 150~600mm Version 1.