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specimen #9423

img 15343 - 150 DPI
img 15344 - 150 DPI

Charadriiformes
Waders, gulls and auks

Laridae Larus
Slaty-backed Gull (Larus schistisagus)

age / gender 3rd cy
finding location Choshi-shi, Chiba-ken, Japan
specimen key JP17/S-8
finding circumstances washed up
finding date 04.02.2017
coll. 411t
created: 09.09.2023

measurements

longest primary H9=319,0mm
longest secondary 0
longest retrix S4=185,0mm
all values

H10 314.0mm
H9 319.0mm
H8 314.5mm
H7 295.0mm
H6 279.0mm
H5 258.5mm
H4 237.5mm
H3 217.0mm
H2 199.0mm
H1 182.0mm
S1 175.5mm
S2 179.0mm
S3 181.0mm
S4 185.0mm
S5 184.5mm
S6 185.0mm