The In some areas Knob-billed duck Bird are monogamous, while in others males may hold small harems of two to four females, Bird which they defend against other males.
Knob-billed duck Bird Facts:
Size: 55 – 75 cm
Voice: Usually silent, but may occasionally utter some low croaking sounds
Range: Almost all over India; mostly resident, but moves considerably with onset of monsoons; uncommon in extreme S and NW India
Habitat: Frequents west areas such as swamps, rivers and lakes with scattered trees.
Unmistakable because of fleshy knob (comb) on top of beak.White head and neck speckled black; purple-green glossy back; bluish and greenish iridescence, especially prominent on the secondaries white lower neck-collar and underbody; short black bars extend on upper breast sides and flanks.
Female duller, smaller, lacks comb. Juvenile has dull buff underparts, face and neck, dull brown upperparts, crown and eye-stripe. Small parties, either on water or in trees over water. Nests in trees.
Knob-billed duck Bird Images Gallery: