Editing Long-tailed duck (section)

==Description==
[[File:Long-tailed Duck (Clangula hyemalis).jpg|thumb|In flight]]
Adults have white underparts, though the rest of the [[plumage]] goes through a complex moulting process. The male has a long pointed tail ({{convert|10|to|15|cm|in|abbr=on}} long) and a dark grey [[beak|bill]] crossed by a [[pink]] band. In winter, the male has a dark cheek patch on a mainly white head and neck, a dark breast and mostly white body. In summer, the male is dark on the head, neck and back with a white cheek patch. The female has a brown back and a relatively short pointed tail. In winter, the female's head and neck are white with a dark crown. In summer, the head is dark. Juveniles resemble adult females in autumn plumage, though with a lighter, less distinct cheek patch.

{| class="wikitable" style="font-size: 87%;"
|-
! colspan="2" | Standard Measurements<ref name=BOC /><ref name=Sibley />
|-
| style="padding-right: 1em;padding-left:0.35em;" | [[Bird measurement#Total Body Length|Total Body Length]] || style="padding-right: 0.5em;padding-left:0.5em;" | {{convert|17.5|-|23.5|in|mm|abbr=on|order=flip}}
|-
| style="padding-right: 1em;padding-left:0.35em;" | [[Bird measurement#Weight|Weight]] || style="padding-right: 0.5em;padding-left:0.5em;" | {{convert|740|g|lb|abbr=on}}
|-
| style="padding-right: 1em;padding-left:0.35em;" | [[Bird measurement#Wingspan|Wingspan]] || style="padding-right: 0.5em;padding-left:0.5em;" | {{convert|28|in|mm|abbr=on|order=flip}}
|-
| style="padding-right: 1em;padding-left:0.35em;" | [[Bird measurement#Wing|Wing]] || style="padding-right: 0.5em;padding-left:0.5em;" | {{convert|209|-|228|mm|in|abbr=on}}
|-
| style="padding-right: 1em;padding-left:0.35em;" | [[Bird measurement#Tail|Tail]] || style="padding-right: 0.5em;padding-left:0.5em;" | {{convert|165|-|237|mm|in|abbr=on}}
|-
| style="padding-right: 1em;padding-left:0.35em;" | [[Bird measurement#Culmen|Culmen]] || style="padding-right: 0.5em;padding-left:0.5em;" | {{convert|26|-|30|mm|in|abbr=on}}
|-
| style="padding-right: 1em;padding-left:0.35em;" | [[Bird measurement#Tarsus|Tarsus]] || style="padding-right: 0.5em;padding-left:0.5em;" | {{convert|34|-|38|mm|in|abbr=on}}
|}

The males are vocal and have a musical yodelling call ''ow, ow, owal-ow''.