A. erythropus in FinlandSpring observations near Pori in

spring 1950-1970 on the wing grazing

OBSERV flocks ind max51 2 3 21152 3 9 226 1053 4 20 465 60054 4 2 15 30055 4 7 57 30056 3 3 31 10057 3 2 77 25258 059 060 061 9 3 60 6562 8 22 319 6063 10 4 48 2864 7 1 2465 8 1 466 9 4 24 1867 10 0 0 068 18 1 2 969 17 0 0 270 15 0 0 0

WATCHERS 1950-1970

Individuals on the wing 1950-1970

Grazing A. erythropus 1950-1970

Oulu ca. 1925

Spring 10 000Autumn: Probably more!

Like A. fabalis A. erythropus autumn migrated partillay over the inland

Oulu 1985 -2005

Spring 100 --> 10 Autumn: 0!

Outside Oulu region there are no observations at all

Finland 1985-2005

100 --> 10 in 20 years. Annual decrease 13 %

Protection measures

• Research / Action Plans (+)

• Hunting restrictions (-)

• Publicity (+-)

• Restocking/reintroduction (+?)

Another Anser

A Step Father

Finny 2004

UL

Aktion Zwerggans. Test 2006-2007

Hanhet

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