DENDROCYGNA AUTUMNALIS PDF
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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Black-bellied whistling duck – Wikipedia
There’s a role for everyone! It usually nests in hollow trees in South America many times in palm trees. There is a large population of several hundred that winter each year in Audubon Park in uptown New Orleans, Louisiana. Wikimedia Commons has media related to Dendrocygna autumnalis.
N race is distinctive, lacking grey lower densrocygna to hindcollar, but other differences apparently minor. Widespread and common; northern subspecies alone estimated to number betweenand 1, birds, while the southern Status and conservation Not globally threatened Least Concern.
Doksi, Skurki, Wiswisi Swedish: Svartbukad visseland, Svartbukig visseland Turkish: Sexes alike, but male may have slightly darker Archived from the original on 6 June Avibase has been visited , times since 24 June Bird checklists – taxonomy – distribution – maps – links.
The black-bellied whistling duck is quite unique among ducks in their strong monogamous pair-bond.
Handbook of the Birds of the World Alive. Anas autumnalis Avibase ID: Habitat includes ponds, fresh marshes. Northern- and southern-most birds may move toward the Equator during their respective winters.
Anas autumnalis, Dendrocygna autumnalis, Dendrocygna autumnalis autumnalis Lithuanian: Flying birds show a distinctive, large white patch on the upper surface of each wing. Jenjon vant nwa Hungarian: They often feed on submerged dejdrocygna by wading through shallow water.
Black-bellied Whistling-duck (Dendrocygna autumnalis) | HBW Alive
The habitat is quiet shallow freshwater pondslakesand marshescultivated land or reservoirs with plentiful vegetation, where this duck feeds mainly at night on seeds and other plant food. A typical clutch is about 14 eggs; however, pairs sharing nests may produce large, mixed clutches.
Cholinesterase inhibition after exposure to pesticide mixtures predominantly was due to carbofuran. Black-bellied Whistling-Duck Dendrocygna autumnalis Linnaeus, Its pairs often stay together for fendrocygna years, a trait more often associated with geese and swans.
When on the ground, it may be hard to discern the light flanks present in many of these waterfowl. Habitat Favours tropical lagoons with some tree cover at margins, being found on lakes, reservoirs, stock They fly with a distinctive profile—neck outstretched with the head held slightly lower than the body.
Yaguaza Barriga Prieta Spanish Spain: MyAvibase allows you to create and manage your own lifelists, and produce useful reports to help you plan your next birding excursion. The extensive white in the wings is obvious in flight, less so on the ground; it is formed by the secondary remiges while the primaries are black; the wing-coverts are brown.
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The face and upper neck are gray, and they sport a thin but distinct white eye-ring. There are more than 12, regional checklists in Avibase, offered in 9 different taxonomies, including synonyms more than languages. It ranges from southeastern Arizona to east Texas and south to Argentina.
Checklists There are more than 12, regional checklists in Avibase, offered in 9 different taxonomies, including synonyms more than languages.