White-headed Duck (Oxyura leucocephala)

ország szűrő

United Arab Emirates

Afghanistan

Albania

Armenia

Angola

Austria

Azerbaijan

Bosnia and Herzegovina

Bangladesh

Burkina Faso

Bulgaria

Bahrain

Burundi

Benin

Botswana

Belarus

Congo, The Democratic Republic of the

Central African Republic

Congo

Switzerland

Côte d'Ivoire

Cameroon

Cyprus

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Djibouti

Denmark

Algeria

Egypt

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Eritrea

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Finland

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Gabon

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Croatia

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Israel

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Portugal

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Mongolia

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Great Britain

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Guernsey

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Baleares

Türkiye-in-Europe

Spanish North African Territories

Türkiye-in-Asia

Northern Ireland

Sicilia

Corsica

Sardegna

Xinjiang

wing length¹

hand-wing-index^1,2 (HWI)

primaries-index

wing length/longest primary ratio

hand-wing-index/primaries-index ratio

137 - 156mm n=5

45 - 48% n=4

nincs elérhető adat

detailed information

The wing length is measured on the flattened and straightened wing ("maximum chord") from the carpal joint to the tip of the longest primary feather, the so-called "Kleinschmidt-method".

combined data from:
Avonet¹: 137 - 156mm n=5

The hand-wing-index, introduced by Kipp 1959, is calculated as the ratio of the hand length (difference between the length of the longest primary and the first secondary) to the wing length.

combined data from:
Avonet¹: 45 - 48% n=4,

The primaries-index is calculated as the ratio of the longest primary feather length to the first (outermost) secondary. It is the equivalent of the hand-wing index for feather measurements.

The wing length/longest primary ratio is calculated as the ratio of the wing length to the length of the longest primary feather.

The hand-wing-index/primaries-index ratio is calculated as the ratio of the hand-wing index to the primaries-index.

¹ Tobias, J. A., et al. (2022). AVONET: morphological, ecological and geographical data for all birds.
² Kipp, Friedrich A.: "Der Handflügel-Index als flugbiologisches Maß", erschienen in "Vogelwarte - Zeitschrift für Vogelkunde", 1959, Band 20, Heft 1

#9440
Kyzylkol, Kazakhstan Kazakhstan
07.07.2022

ország allokációk

Afghanistan · Albania (vagrant) · Algeria · Armenia · Austria (vagrant) · Azerbaijan · Belgium (vagrant) · Bosnia and Herzegovina (vagrant) · Bulgaria · China · Croatia (origin uncertain) · Cyprus · Denmark (vagrant) · Egypt (vagrant) · France (vagrant) · Georgia · Germany (vagrant) · Greece · India · Iran, Islamic Republic of · Iraq · Israel · Italy (vagrant) · Jordan · Kazakhstan · Kyrgyzstan · Libya (vagrant) · Malta (vagrant) · Mongolia · Montenegro (origin uncertain) · Morocco · Netherlands (vagrant) · North Macedonia (origin uncertain) · Pakistan · Palestine, State of (origin uncertain) · Poland (vagrant) · Portugal (vagrant) · Romania · Russian Federation · Saudi Arabia (vagrant) · Serbia (origin uncertain) · Slovakia (vagrant) · Slovenia (vagrant) · Spain · Switzerland (vagrant) · Syrian Arab Republic · Tajikistan · Tunisia · Türkiye · Turkmenistan · Ukraine · Uzbekistan · Hungary ·
forrás: IUCN 2025. IUCN Red List of Threatened Species. Version 2025-1 <www.iucnredlist.org>
értékeléi adatok: |

White-headed Duck
Oxyura leucocephala

Anatidae család fajai

ország allokációk

létező

extinct post-1500

Anseriformes

Ducks, geese and swans

védelmi státusz

White-headed Duck Oxyura leucocephala Anatidae család fajai

ország allokációk

létező

extinct post-1500

Anseriformes Ducks, geese and swans

védelmi státusz

White-headed Duck
Oxyura leucocephala

Anatidae család fajai

Anseriformes

Ducks, geese and swans