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4523

img 6391 - 150 DPI
img 6392 - 150 DPI

Charadriiformes
Waders, gulls and auks

Sternidae Thalasseus
Great Crested-Tern (Thalasseus bergii)


coll. W. Hansen
62/13/1/1
Scientific feather collection Wilfried Hansen. Commercial use permitted under CC BY 4.0 license as long as credit is given to Wilfried Hansen and the Feather Research Group est. 1972
created: 27.09.2019
showcase

measurements

feathers

longest primary P9=274,0mm
longest secondary S17=119,0mm
primary/secondary difference 157mm
primaries-index 57%
all values

P1 124.0mm
P2 137.5mm
P3 158.0mm
P4 178.5mm
P5 198.5mm
P6 222.0mm
P7 242.0mm
P8 260.0mm
P9 274.0mm
P10 268.0mm
S1 117.5mm
S2 115.0mm
S3 115.5mm
S4 111.5mm
S5 109.5mm
S6 108.5mm
S7 105.5mm
S8 104.5mm
S9 105.5mm
S10 105.5mm
S11 103.5mm
S12 102.0mm
S13 104.5mm
S14 104.0mm
S15 103.0mm
S16 109.5mm
S17 119.0mm
S18 115.0mm