Eurasian Collared-Dove (Streptopelia decaocto)

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#12395
Illmitz Burgenland, Austria
10.12.2023

ad.

#2594
Huesca (ESP)
30.04.2012

#2107
Wien, XXI., Wasserpark Wien, Austria
18.03.1988

	number	longest	smallest individual	biggest individual
primary	10 per wing	145.5 - 154.0mm n=8 P₈ (88%) P₇ (13%)	1175
secondary	12-13 per wing	105.0 - 110.0mm n=8 S₂ (38%) S₁ (25%) S₁=S₃ (13%) S₁=S₂ (13%) S₁=S₂=S₃ (13%)	2594
retrix	12	144.0 - 157.0mm n=9 R₁ (33%) R₃=R₄ (22%) R₃ (11%) R₄ (11%) R₂=R₃ (11%) R₄=R₅ (11%)	2594	12395

wing length¹

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

primaries-index

wing length/longest primary ratio

hand-wing-index/primaries-index ratio

165 - 184mm n=10

28 - 39% n=8

26 - 30% n=6

⌀119%

no data available

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: 165 - 184mm n=9
Featherbase: 180 - 180mm n=1

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: 28 - 39% n=8,

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