jueves, 31 de julio de 2008

Recuperaciones interesantes

Acabo de leer en la web del Finnish Museum of Natural History algunos datos sorprendentes con gaviotas anilladas como protagonistas:

Lesser Black-backed Gull (L. fuscus)

This bird, C-61.741, was ringed as a chick in Simo, near the city of Oulu, on 13.7.1957. More than two years later (25.9.1959) the bird was found shot in Cocos Islands, northwest of Australia. It has travelled a distance of 10478 km and is still the furthest recovery of Finnish Lesser Black-backed Gulls.
Herring Gull (L. argentatus)
HT-017.100 was ringed as a chick in Dragsfjärd, southwestern Finland, on 9.6.1973. It was killed almost 33 years later (30.4.2006) at a waste disposal site in Parainen, southwestern Finland. This bird holds the longevity record of birds ringed in Finland.
Black-headed Gull (L. ridibundus)
ST-178.394 was ringed as a fledgling on 29.6.1996 in Hämeenkyrö county, Pirkanmaa. The metal ring was sighted with a telescope on 3.1.2000 and 7.1.2000 in Fort Worth, Texas (USA). This is the westernmost recovery of a Finnish bird, as well as being the first Finnish-ringed bird sighting in the USA. The bird was back again to it's wintering quarters in Texas on 30.11.2000.

Me ha dejado especialmente impresionado el dato de la sombría, anillada en Finlandia y recuperada en...¡Australia!
Alucinante.

2 comentarios:

Antonio Gutierrez Pita dijo...

Hola Gabriel:
Lo de Australia es una auténtica "locura"; usando la misma lógica, cualquier día nos aparece por aquí una Larus pacificus.... Lástima que sean sedentarias...
Impresionante, como se mueven estos bichos.....

mikelgar dijo...

Alucinante...lo triste es que después de recorrer más de 10000 kmts alguien le disparara...en fin.
Un abrazo Gabi!