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4428

img 6228 - 300 DPI
img 6229 - 300 DPI
img 7821 - 200 DPI
img 7822 - 200 DPI

Charadriiformes
Waders, gulls and auks

Sternidae Sterna
Arctic Tern (Sterna paradisaea)


age / gender ad.
finding location Walvis Bay
Namibia
finding circumstances traffic victim
finding date 20.09.2018
coll. T. Hochebner
241-02
created: 01.08.2019
showcase

measurements

feathers

longest primary P10=219,0mm
small individual
26% of max range of variation
214,5mm
232,0mm
longest secondary S13=80,0mm
longest retrix R6=187,5mm
big individual
67% of max range of variation
163,5mm
199,5mm
primary/secondary difference 147mm
primaries-index 67%
all values


P1 80.0mm
P2 89.5mm
P3 101.5mm
P4 117.0mm
P5 134.0mm
P6 152.5mm
P7 173.5mm
P8 195.0mm
P9 214.0mm
P10 219.0mm
S1 72.5mm
S2 70.0mm
S3 69.0mm
S4 69.0mm
S5 70.0mm
S6 70.5mm
S7 71.0mm
S8 72.5mm
S9 73.0mm
S10 74.0mm
S11 75.0mm
S12 78.0mm
S13 80.0mm
S14 78.5mm
S15 78.5mm
S16 76.0mm
S17 70.0mm
S18 54.5mm
S19 36.0mm
R1 78.0mm
R2 81.5mm
R3 90.0mm
R4 104.0mm
R5 129.5mm
R6 187.5mm