We have 50 year series of measurements of the Willow Warbler migrating through Polish Baltic coast. From a pilot study it seems that changes in some measurements are visible. Because our sites are passed by two subspecies, for solving the problem there are needed data from other sites in Central/Eastern Europe and especially from SE European Flyway. "Long term" series could be at least of 10 years of systematic catching.
It may be irrelevant, but we have a dataset from 2014 and 2015 from the Black Sea coast and a 10 year old dataset from the Carpathian mountains (Ghiurhgiu mountains ringing camp) between 1992-2002. I think we can gladly send it to you.
Thanks a lot - it could be a good piece for this puzzle!
For further links contact directly at [email protected], please.
Hello Prof. Busse,
We have met a long time ago but I do not think that you remember me. We have the totals below, only rather recent unfortunately, from the island of Lesvos at 39o 01' North 26o 33' E. Wing (max chord), weight, fat score and tarsus measurments. They are not computerised at present but they could be if they are of some interest. We have larger numbers of Phylloscopus trochilus from some other sites in Greece but for time series of less than 10 years.
Filios Akriotis
Athens Bird Ringing Scheme
1994 105
1995 84
1996 190
1997 46
1998 171
1999 5
2000 35
2001 15
2002 155
2003 29
2004 76
Dear Prof. Busse,
They can have rather long set of data in Ottenby or/and Falsterbo in Sweden. I noticed they publish rather frequently thus they seems to be interested in cooperation. Moreover, as one of the most numerous species, Willow Warbler might be well measured there what seems to give a good data set to work with. I cooperate with one of the stations in the central Sweden and they also have such data. If you would be interested, I can share a contact to some people from this station.
Kind Regards, Michal
Dear Michał,
Thanks a lot for your offer to contact people of the mentioned station in Sweden - any data would be welcome.
I obviously know a few stations that could have such data, but still a lot of others could help in covering a wide area - and time span!
Best,
P. Busse
Dear Przemyslaw,
I suppose several ringing stations along the Dutch coast will have such data. At least one of them (Castricum) has published a book (in Dutch), but many more will have their data digitally available. AT Castricum they caught 11,747 Willow Warblers between 1960 and 2006.
There is an active e-mail group of Dutch bird ringers in which I can post your request. Groups could then reply to you directly. Can you send me your e-mail address for reactions?
Best wishes,
Sjoerd Dirksen ([email protected])
Thank you very much for your interest in this theme - good data from Dutch area, where pure west migration occurs could be nice comparison to the SE flyway birds.
My direct e-mail: [email protected]
All the best
P. Busse
Dear Dr Busse,
You could ask to the Catalan Ornithological Institute. They have a serial data from 93-2015 in Autum migration (Migracio de tardor).
See here basic stats (sorry only catalan): http://www.sioc.cat/fitxa.php?sci=1&sp=PHYLUS).
You could contact Gabriel Gargallo (an EURING member of Board team).(http://www.ornitologia.org/ca/quisom/staff/staff_gabriel_gargallo.html)
Best,
Javier
Dear Przemek, also have biometric data on P.trochilus trapped in the valley of Biebrza in 1989-2000. The data comes rather from the initial migration periods (June-August), just as I caught Sedge Warbler. The full data of measurements by standard AB, but I do not remember just how many are there samples every years. Sincerely Jacek.
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