Revision 858135 of "Paddy_Ashdown,_Baron_Ashdown" on enwiki

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<tr><th align="center" bgcolor=pink>'''Whistling Ducks'''</th></tr>
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<tr><th align="center" bgcolor=pink>'''[[Scientific classification]]'''</th></tr>
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<tr><td>[[Kingdom (biology)|Kingdom]]:</td><td>[[Animal]]ia</td></tr>
<tr><td>[[Phylum (biology)|Phylum]]:</td><td>[[Chordate|Chordata]]</td></tr>
<tr><td>[[Class (biology)|Class]]:</td><td>[[Aves]]</td></tr>
<tr><td>[[Order (biology)|Order]]:</td><td>[[Anseriformes]]</td></tr>
<tr><td>[[Family (biology)|Family]]&dagger;:</td><td>[[Anatidae]]</td></tr>
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<tr><th align="center" bgcolor=pink>[[Genera]]</th></tr>
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'' Dendrocygna <br>
Thalassornis ''   
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<tr><td align="center">&dagger; For other ducks, <br>see also: ''[[Anatidae]]'' </td></tr>
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''' Dendrocygninae ''' is a sub-family of the [[duck]], [[goose]] and [[swan]] family of [[bird]]s, ''[[Anatidae]]''.

Most of its members are the 9 species of  ''' whistling ducks'''  in the genus ''Dendrocygna'' which has a worldwide distribution through the tropics and subtropics. These have, as their name implies, distinctive whistling calls. 

The whistling ducks have long legs and necks, and are very gregarious, flying to and from nighttime roosts in large flocks. Sexes are the same, and all have black underwings in flight.

The exception is the [[White-backed duck]] ''Thalassornis leuconotus'' of Africa, which is difficult to classify and has often been placed in the [[Oxyurinae]], which it resembles in morphology and feeding habits. However, it appears that the similarity is largely a matter of convergence. It may rate its own sub-family.


The species are:
Rest to come

*[[White-backed duck]] ''Thalassornis leuconotus''