Origin of type specimen unclear, leading to confusion over correct allocation of nominate subspecies autumnalis; S race has been labelled discolor, with N race . Anguilla; Antigua and Barbuda; Argentina; Aruba; Barbados; Belize; Bolivia, Plurinational States of; Brazil; Canada; Colombia; Costa Rica; Cuba; Dominica;. Black-bellied whistling duck (Dendrocygna autumnalis) brain cholinesterase characterization and diagnosis of anticholinesterase pesticide exposure in wild.
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Origin of type specimen unclear, leading to confusion over correct allocation of sendrocygna subspecies autumnalis ; S race has been labelled discolorwith N race then as nominate Rbut re-examination of the literature indicates that autumnalis should be applied to S population, with N population then named fulgens R R R.
N race is distinctive, lacking grey lower breast to hindcollar, but other differences apparently minor. Races intergrade in Panama. Only subscribers are able to see the bibliography.
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Anas autumnalis Linnaeus, America. Subspecies and Distribution D. What do coloured bullet points mean?
Descriptive notes 43—53 cm; — g nominatemale — g, female — g fulgens. Sexes alike, but male may have slightly darker Habitat Favours tropical lagoons with some tree cover at autumnalia, being found on lakes, reservoirs, stock Northernmost breeding areas largely deserted in winter, which birds presumably Status and conservation Not globally threatened Least Concern.
Widespread and common; northern subspecies alone estimated to number betweendendrocytna 1, birds, while the southern Bibliography Only subscribers are able to see the bibliography.
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Recommended citation Carboneras, C. Black-bellied Whistling-duck Dendrocygna autumnalis. Handbook of the Birds of the World Alive.