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9491

img 15472 - 300 DPI
measure

Passeriformes
Songbirds and kin

Alaudidae Galerida
Thekla Lark (Galerida theklae)


age / gender juv.
finding location südl. Petra, Mallorca, Balearen / Spanien
finding circumstances traffic victim
finding date 20.06.2005
coll. W. Hansen
283/1
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: 10.10.2023
showcase

species identification

die Haubenlerche kommt auf Mallorca nicht vor; die Th. ist kleiner als die Haubenlerche (die Schwungfedern sind kürzer), die Innenfahnen rötlicher (kräftiger im Farbton)

age identification

Zeichnungsmuster, Färbung u. lt. Angabe am Beleg

measurements

feathers

longest primary P6=81,5mm
longest secondary S3=S2=68,5mm
primary/secondary difference 14mm
primaries-index 17%
all values

P1 66.5mm
P2 67.0mm
P3 68.5mm
P4 72.0mm
P5 79.5mm
P6 81.5mm
P7 80.0mm
P8 78.5mm
P9 73.0mm
P10 23.0mm
S1 68.0mm
S2 68.5mm
S3 68.5mm
S4 67.5mm
S5 67.0mm
S6 65.0mm
S7 63.0mm
S8 51.0mm
S9 36.0mm