Piotr Zięcik(Zientek) & Andrzej Kośmicki (Mikrus)
place of marking: Gdynia/Gdańsk, the Gulf of Gdańsk,
co-ordinates: 54:31:07 N 18:33:03 E
number of ringed birds: 14 ad: 5 ( 36 %), subad: 6 (45 %)
imm: 3 (19 %)
STATISTICS ;)
recovery in numbers: 1 :)
recovery in %: 8 %
the furthest recovery: 355 km
average distance: 355 km
mean distance: 355 km
method of trapping: fishing line + loop