Tongue of Little Spiderhunter (Arachnothera longirostra)

Nectar feeders (hummingbirds, sunbirds, spiderhunters, & honeycreepers) - tongues may form an elongated 'tube' allowing nectar to be gathered by capillary action (not by suction) or may have brushy tips that 'collect' nectar and permit the bird to essentially lap it up.

Little Spiderhunter (Arachnothera longirostra)
Kelicap Jantung Kecil
Size: 16cm, Weight: 17-19 grams.
Habitat: Forests, forest edge, wooded areas

Feed largely on nectar and tiny insects, spiders.

A bird's bill consists of a bony framework covered by a tough layer of keratin. The keratin layer is
continuously replaced throughout the life of a bird & is just as continuously worn down by eating and
manipulating hard objects. The cutting edges of the beak are the tomia. The bill plays a critical role in food
acquisition &, of course, bill morphology varies with food habits:

** Text from: here
(http://www.yardbirds.org.il/computer/digestion.pdf)