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2227

img 3357 - 150 DPI
img 3358 - 150 DPI

Charadriiformes
Waders, gulls and auks

Laridae Larus
Great Black-backed Gull (Larus marinus)


age / gender 2nd cy
finding location Leybucht bei Greetsiel
Aurich, Niedersachsen, Germany
finding circumstances washed up
finding date 02.02.2017
coll. A. Haase
created: 11.02.2017

remarks

1. Winter

measurements

longest primary P9=369,0mm
big individual
72% of max range of variation
323,5mm
387,0mm
longest secondary S1=195,5mm
longest retrix R5=203,0mm
average individual
58% of max range of variation
180,0mm
219,5mm
all values



P10 357.5mm
P9 369.0mm
P8 360.0mm
P7 339.5mm
P6 316.5mm
P5 292.0mm
P4 269.0mm
P3 253.0mm
P2 224.5mm
P1 205.0mm
S1 195.5mm
S2 190.5mm
S3 187.5mm
S4 185.5mm
S5 180.5mm
S6 177.0mm
S7 179.0mm
S8 177.0mm
S9 181.0mm
S10 181.0mm
S11 179.5mm
S12 180.5mm
S13 182.5mm
S14 185.0mm
S15 185.5mm
S16 188.0mm
S17 190.0mm
S18 191.0mm
S19 193.5mm
S20 191.0mm
R1 195.5mm
R2 197.0mm
R3 198.0mm
R4 201.5mm
R5 203.0mm
R6 199.0mm
S21 183.5mm
S22 166.5mm
S23 135.5mm