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2679

img 3983 - 150 DPI
img 3984 - 150 DPI

Charadriiformes
Waders, gulls and auks

Laridae Larus
Great Black-backed Gull (Larus marinus)


age / gender ad.
finding location St. Peter-Ording
Nordfriesland, Schleswig-Holstein, Germany
finding circumstances washed up
finding date 22.01.2017
coll. A. Haase
created: 28.01.2018
showcase

measurements

wing

estimated wing length
based on the species wing/primarylength-ratio		 ~515mm

feathers

longest primary P9=387,0mm
biggest individual in collection
upper bound of range of variation
323,5mm
387,0mm
longest secondary S1=215,5mm
primary/secondary difference 172mm
primaries-index 44%
all values

P1 229.0mm
P2 249.5mm
P3 272.5mm
P4 297.0mm
P5 319.5mm
P6 342.5mm
P7 361.0mm
P8 382.5mm
P9 387.0mm
P10 366.0mm
S1 215.5mm
S2 210.0mm
S3 204.5mm
S4 199.0mm
S5 195.5mm
S6 193.5mm
S7 194.0mm
S8 192.5mm
S9 193.5mm
S10 192.5mm
S11 196.5mm
S12 194.0mm
S13 197.5mm
S14 198.5mm
S15 197.5mm
S16 203.0mm
S17 201.5mm
S18 208.5mm
S19 206.5mm
S20 206.5mm
S21 206.0mm
S22 206.5mm
S23 193.5mm
S24 173.0mm
S25 138.5mm
S26 98.5mm