SEEN - SE European Bird Migration Network
1998 Przebendowo
5-6 December 1998,

Przebendowo, Poland


2nd  Workshop of the SE European Bird Migration Network

25 participants from 11 countries – not only from Europe but also from the Middle East: Egypt and Israel – took part in this workshop. Programme of this meeting comprised several presentations and up-date on current work of SEEN, formal sessions (the SEEN Constitution) and a computer software session.

Presentations

The Ocsa Bird Ringing Station.
Halmos Gergö (Hungary)
  • the Ocsa Bird Ringing Station has been working since 1983
  • capture effort: 180 days every year (spring: two weeks plus weekends, autumn: July - October, winter: bird tables)
  • data gathered: sex/age, biometrics (wing length, fat score, muscle score etc.)
The data give an opportunity for a detailed studies like biometrical differentiation, capture-recapture studies, site fidelity etc.
Copies of data on number of birds ringed - available from the SEEN Board.

The Chituc Ringing Station: field methods and first results.
Marton A. Kelemen (Romania)
  • the Chituc Ringing Station: located on the sand bank of the Black Sea and Danube Delta, works during autumn migration
  • capture effort: differed within years; birds were caught with Heligoland trap one year
  • data gathered: sex/age, biometrics (wing length, fat score, muscle score etc.), moult
  • two years of work of the station - ca. 1000 birds ringed

22-years Activities of Bird Ringing Station „Lebedivka”: some results and problems.

Anatoly Poluda (Ukraine)
  • Bird Ringing Station „Lebedivka”: established in 1976 (before 1976: only visible observations of waterfowl, passerine birds etc. were conducted in two years)
  • aim of work: to control bird migration in the Dniepre region
  • birds are caught with Heligoland trap (Rybachy type)
  • 1976-1998: 223012 individuals of 96 species ringed
  • recoveries: over 200 recoveries (this number decreased as people did not send the rings they found, back to the station)
  • problem: Heligoland trap has to be repaired as just now it cannot work anymore

West-Ukrainian Ornithological Station „AVOSETTA”.

Pavlo Hura (Ukraine)
  • Station „Avosetta”: started to work in 1992, works within 5-days intervals scheme
  • 22 species, out of 160 that have been caught there by now, entered the Red Data Book of Ukraine
  • the studies conducted by this station helped to establish an ornithological reserve: Czolginskij
  • the most numerous species caught at the station: Motacilla flava, Acrocephalus schoenobaenus, Acrocephalus scirpaceus
  • 192 orientation experiments done on Acrocephalus schoenobaenus, Acrocephalus scirpaceus and Motacilla flava
  • 150 people were involved in the work of the station

The phenomenon of waves of Passerine migratory birds crossing the Sahara.

Ulf Bauchinger (Germany)

This topic has been cancelled and the speaker has presented an „Importance of additional data in bird migration research”:
  • ringing site, behavioural observations etc.:
    Studies were conducted in North-eastern part of Africa; two stations (90 km apart) located in two different habitats were working:
    - „desert” (= no food, water, vegetation)
    - „oasis” (= water permanent, huge amount of insects, dense vegetation)
  • some conclusions:
    - there were difference in body mass: heavier birds were caught at desert
    - there was no difference in feather length between the birds caught at these two locations
    - studies of territorial behaviour: heavier birds were the territorial ones whilst the lighter one were not
  • importance of weather conditions at ringing site:
    In spring 1998 in Zaranik (Egypt), there was a huge increase in numbers of Garden Warbler during a day with a very bad weather conditions.
    The birds within the „wave” were heavier but there was no difference in 8th primary measurement.
  • conclusions:
    several additional data are of great importance in bird migration research, some of them are:
    - ringing site (localisation, habitat etc.)
    - weather (Internet can offer an easy access to such data
    - behavioural observations
    - radar observations
    - different catching methods
    - assessing physiological parameters (plasma metabolites, hormones, mean retention time, migratory restlessness etc.)
    There is a need for the standardised methods to assess „additional” data.

Changes in migration phenology of Passerines at Eilat.

Reuven Yosef (Israel)
  • Eilat: birds were ringed since 1952 but the studies were conducted by the people from the United States and the data are not available; since 1984: studies are regular, birds are documented and the data are available; this is the only one station in the Middle East working on regular basis;
  • other projects: Wader Programme, Raptor Project (1994-98)
  • over the last 10 years there was a change in timing of migration according to the data on Passerine birds (that were published and are available):
        - „insectivores” - arrive nearly 1 week earlier
        - „carnivores” (shrikes) - no change
        - „herbivores” - arrive later, in some species even a month later
  • Eilat is a very important station in research of bird migration; every season: 5 - 20 thousands birds are caught and ringed; autumn migration: birds are coming from the North in a broad front; during spring, on return to the breeding grounds, the birds migrate in a streamline going straight through Eilat.

Studies on bird migration in Egypt.

Mindy Baha El Din (Egypt)
  • Northern Egypt and Sinai: very important sites for the bird migration thus there is a big need for a bird migration regular studies there
  • most research was done by the foreign people, there is no tradition in ornithology in this region
  • there are some potential sites very important for the bird migration (waders, passerine birds, raptors etc.) that could work as the stations
  • conclusions:
    there are lots of different studies that can be done and there is big need for co-operation and resources.
 
Goldcrest migration at the Baltic Coast.
Janis Baumanis (Latvia)
  • migration routes of Goldcrest
  • birds from Ladoga Lake region seem to start their migration earlier than the Finnish birds do
  • further studies: comparison of autumn 1998 could be very interesting

Are migratory movements of Great Tit (Parus major) regular in the Hanko Bird Observatory?
Anssi Vähätalo (Finland)
  • Peter Berthold in „Bird Migration - a General Survey” - Parus major: typical example of irruptive species
  • aim of the study: Parus major in the Hanko Bird Observatory - an irruptive species or a regular migrant
  • study strategy: standardised since 1980; the study was based on data 1980-1994
  • regular migrant = variation in ringing totals between years: low (in the Hanko: regular migrant species CV mean = 43 (max CV = 88))
  • irruptive species: CV: high (in the Hanko: irruptive species: CV around 100)
  • conclusion:
    in the Hanko Bird Observatory: Parus major is a regular migrant

Different kinds of ringing activity of the Biological Station Rybachy at the Curonian Spit.
Nadejda Zelenova (Russia)
  • different kind of activities:
        - 4 Heligoland traps - Fringilla Station
          (several thousands of migrants are being caught a day with these traps)
        - 65 mist-nets (ESF Network Programme) in reedbed and willows - Rybachy Station
        - ringing of nestlings - Passerine at the nest-boxes - over 1 000
        - several short-term projects e.g. behavioural observations
  • conclusions:
    to get the real impression of bird migration, even at small area, one method of catching is not enough.

Computer Software Session

Software package RECRING for analyses of recoveries.
Magdalena Remisiewicz (Poland)

Computer bank of trapping data and measurements and programmes used at the Biological Station Rybachy.
Nadejda Zelenova (Russia)
Created by Pronetix 2006