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8823

img 15243 - 150 DPI
img 15242 - 150 DPI

Charadriiformes
Waders, gulls and auks

Laridae Larus
Great Black-backed Gull (Larus marinus)


age / gender 2nd cy
finding location Süd Norderney /
Aurich, Niedersachsen, Germany
specimen key 19
finding circumstances plucked feathers
finding date 08.01.2023
coll. A. Haase
created: 18.01.2023
showcase

measurements

longest primary P9=345,0mm
small individual
34% of max range of variation
323,5mm
387,0mm
longest secondary 0
longest retrix R5=185,0mm
small individual
13% of max range of variation
180,0mm
219,5mm
all values


P10 336.0mm
R6 183.5mm
R5 185.0mm
R4 183.5mm
R3 182.0mm
R2 182.5mm
R1 181.5mm
P1 196.5mm
P2 214.0mm
P3 233.0mm
P4 254.5mm
P5 278.0mm
P6 302.5mm
P7 322.5mm
P8 337.0mm
P9 345.0mm