gallusrostromegalus:animalworld:KNOB-BILLED DUCK Sarkidiornis melanotos ©瘤鸭 @patosygansosThis common
gallusrostromegalus:animalworld:KNOB-BILLED DUCK Sarkidiornis melanotos ©瘤鸭 @patosygansosThis common species is unmistakable. It is one of the largest species of duck. Length can range from 56 to 76 cm (22 to 30 in), wingspan ranges from 116 to 145 cm (46 to 57 in) and weight from 1.03 to 2.9 kg (2.3 to 6.4 lb). Adults have a white head freckled with dark spots, and a pure white neck and underparts. The upperparts are glossy blue-black upperparts, with bluish and greenish iridescencewhen the light catches them just right (as in this photo) especially prominent on the secondaries (lower arm feathers). The male is much larger than the female, and has a large black knob on the bill. Young birds are dull buff below and on the face and neck, with dull brown upperparts, top of the head and eyestripe.Other posts you might like:Bald Ibis (Northern and Southern)Tiny Mandarin DuckAnother Iridescent Bird - Nicobar PigeonAW YEAH, NATURE IS RE-EVOLVING PTEROSAURS. -- source link