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11849

img 17971 - 600 DPI
img 17972 - 600 DPI

Anseriformes
Ducks, geese and swans

Anatidae Aythya
Greater scaup (Aythya marila)


age / gender immat. male
finding location Jastarnia
Województwo pomorskie, Poland
finding circumstances bycatch
finding date 29.01.2024
coll. D. Fikus
50/17
Collection in Poland
created: 19.10.2025
showcase

measurements

wing

estimated wing length
based on the species wing/primarylength-ratio		 ~215mm

feathers

longest primary P9=159,5mm
big individual
66% of max range of variation
147,0mm
166,0mm
longest secondary S14=128,5mm
longest retrix R3=R4=74,5mm
biggest individual in collection
upper bound of range of variation
70,0mm
74,5mm
primary/secondary difference 64mm
primaries-index 40%
all values


P1 97.5mm
P2 104.0mm
P3 112.0mm
P4 121.5mm
P5 130.0mm
P6 139.5mm
P7 148.5mm
P8 157.5mm
P9 159.5mm
P10 154.0mm
S1 95.5mm
S2 92.5mm
S3 89.5mm
S4 87.5mm
S5 85.0mm
S6 84.0mm
S7 83.0mm
S8 84.5mm
S9 86.0mm
S10 90.5mm
S11 96.5mm
S12 105.5mm
S13 121.5mm
S14 128.5mm
S15 114.5mm
S16 89.5mm
S17 63.5mm
S18 29.5mm
R1 71.5mm
R2 73.0mm
R3 74.5mm
R4 74.5mm
R5 73.5mm
R6 70.5mm
R7 66.5mm