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Bird Migration Research Foundation

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Editor:
Prof. dr hab. Przemysław Busse

Managing/Subject Editor:
Dr Agnieszka Ożarowska

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Dr Izabella Rząd

Editorial Members:
Lorenzo Fornasari (Italy)
Wulf Gatter (Germany)
Wojciech Kania (Poland)
Vladimir Payevsky (Russia)
Pertti Saurola (Finland)
Reuven Yosef (Israel)

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   THE RING, Vol. 15, No 1-2, 1993, Proceedings ''Baltic Birds - 7 Conference'', Part 1

CONTENTS:

Proceedings "Baltic Birds - 7 Conference on the Study and Conservation of Birds of the Baltic Region". Part 1

Welcome speech
(page 11)

Greetings from the Naturschutzbund Deutschland (NABU)
(page 13)

Resolution of the "Baltic Birds" - 7 Conference
(page 15)

List of participants
(page 17)

General problems

MECISLOVAS ZALAKEVICIUS
Ornithological investigations in Lithuania and their development perspectives
(page 25)

ARNULF MULLER-HELMBRECHT
Agreement on the conservation of African-Eurasian migratory waterbirds. A proposal for an agreement under the Bonn Convention
(page 30)

CLAUS MAYR
Nabu’s part in the international network of nature conservation
(page 43)

HELMUT BRÜCHER
Illegal trade in birds of prey: A growing problem between Eastern and Western Europe
(page 49)

MECISLOVAS ZALAKEVICIUS
Studies on bird migration in Lithuania
(page 53)

STEFAN STRAWINSKI
Potential ecological pitfalls inadvertently produced by man at important bird sites
(page 57)

Population dynamics - Monitoring

PRZEMYSLAW BUSSE and IRINA MAROVA
Population dynamics 1961-1990 of common Leaf Warblers (Phylloscopus sp.) at some Central European bird ringing stations
(page 61)

JANIS BAUMANIS and AGRIS CELMINS
Long-term autumnal trends of migrating land birds in Pape, Latvia
(page 81)

WOJCIECH GORSKI
Long-term dynamics of an urban population of Collared Dove (Streptopelia decaocto) from southern Baltic coast
(page 86)

MATI KOSE
Swallow populations in Estonia
(page 97)

ANDRIS AVOTINS and A. KEMLERS
Monitoring of owls in Latvia
(page 104)

IRINA E. SAMUSENKO
Distribution and population dynamics of Grey Heron (Ardea cinerea) in Belarus
(page 115)

ANTRA STIPNIECE
Mid-winter waterfowl counts in Latvia, 1984-1993
(page 121)

ALEKSEY KUROCHKIN
Studies an beached birds and oil pollution in Latvia
(page 127)

LEIF NILSSON
Changes in resting and wintering waterfowl populations in Sweden, 1967-1993
(page 135)

SVEN MATHIASSON
Heavy metals and organochlorines in Whooper Swans (Cygnus cygnus) wintering in western Sweden
(page 147)

JANIS VIKSNE and MARA JANAUS
What is going on with the Black-headed Gull (Larus ridibundus) at the eastern coast of the Baltic?
(page 154)

DARUISZ BUKACINSKI and MONIKA BUKACINSKA
The changes in numbers and distribution of the Black-headed Gull breeding population on the Vistula River in the years 1962-1993
(page 159)

PETER BLUMS, ILMARS BAUGA, PETER LEJA and AIVARS MEDNIS
Breeding population of ducks on Engure Lake for 35 years
(page 165)

EVE MAGI, TAIVO KASTEPOLD and TRIIN PAAKSPUU
Changes in numbers and structure of Anseriformes nesting on Moonsund islands in Matsalu Nature Reserve
(page 170)

CZESLAW NITECKI
Changes in breeding avifauna of the Lake Druzno Nature Reserve during the past 100 years
(page 176)

VLADIMIR V. IVANOVSKY
Productivity and breeding success of rare raptors in Belorussia, 1991-1993
(page 180)

Distribution - Protection - Management

ERICH RUTSCHKE
Wise use of geese in the Baltic area
(page 183)

AIVAR LEITO
Breeding range expansion of the Barnacle Goose (Branta leucopsic) in the Baltic and Barents Sea areas
(page 202)

DARIUSZ BUKACINSKI and MONIKA BUKACINSKA
Colony-site and nest-site selection of the Black-headed Gull (Larus ridibundus) at the middle course of the Vistula River
(page 208)

MARTTI HARIO, ESA LAMMI, MARKKU MIKKOLA and JAN SODERSVED
January counts of waterfowl in SW Finland: the dependence on ice situation
(page 216)

SVEN MATHIASSON
Relation between winter, breeding and moulting grounds -general applicability of local field studies of Mute swans (Cygnus olor) on the Swedish West-coast
(page 223)

MICHAŁ GOC and LECH ILISZKO
The Polish part of Vistula Lagoon - an important bird area
(page 232)

MICHAL GOC and LECH ILISZKO
Aerial survey of water birds on Polish part of Vistula Lagoon
(page 237)

MADARS BERGMANIS and MARIS STRAZDS
Rare woodpecker species in Latvia
(page 255)

VLADIMIR V. IVANOVSKY and ALEXEY K. TISHECHKIN
Monitoring of Lesser Spotted Eagle (Aquila pomarina) in Belorussia
(page 267)

JURIS LIPSBERGS
Artificial nests built on spruce to attract the White-tailed Eagle (Haliaetus albicilla)
(page 274)

MICHAEL E. NIKIFOROV
Impact of habitat succession in avian populations in the area abandoned after Chernobyl’s accident
(page 281)

KUNO BREHM
The changing vegetation on raised bogs and heathland in Schleswig-Holstein and the consequences for birdlife
(page 293)

ANDRIS AVOTINS
Breeding birds census in Teichi Bog
(page 333)

VLADIMIR P. KOZLOV, VITALY Y. KUZMENKO
Bird fauna and populations of raised bogs of Belorussia
(page 340)

VICTOR BIRYUKOV, VLADIMIR P. KOZLOV and VITALY Y. KUZMENKO
Role of Elnya raised bog (Vitebsk region, Belorussia) as Natural Reservation of waterfowl and wetland birds
(page 348)

LEONID P. SHKLJAROV
Vilejka reservoir as ipmortant bird area in Belorussia
(page 351)

GUNDARS VAVERINS and ANDRIS AVOTINS
Common Crane (Grus grus) in the Teichi Nature Reserve
(page 354)

RIMANTAS R. BUDRYS
Common Crane (Grus grus) in South-west Lithuania
(page 361)

ROMAS MECIONIS and VYTAUTAS JUSYS
The White-Tailed Eagle (Haliaetus albicilla) in Lithuania
(page 363)

VYTAUTAS JUSYS, LEONAS JEZERSKAS and ROMAS MEEIONIS
New bird species for Lithuania
(page 368)

GINTARAS MATIUKAS
Annual dynamics of spruce forest birds community
(page 370)

WLODZIMIERZ MEISSNER, MACIEJ KOZAKIEWICZ and MICHAL SKAKUJ
The number and distribution of wintering waterfowl along the Polish Baltic coast in 1993
(page 375)

TATYANA B. ARDAMATSKAYA
The difference in breeding habitats of the Mediterranean Gull (Larus melanocephalus) in the Black Sea and the Baltic region
(page 378)

JANIS VIKSNE and MARA JANAUS
Feeding flights of the Black-headed Gull (Larus ridibundus) in the surroundings of Riga
(page 382)

JANIS VIKSNE and MARA JANAUS
Post-fledging survival of the Black-headed Gull (Larus ridibundus) depending on hatching parameters
(page 387)

JUHA MARKKOLA and MATTI TYNJALA
The finnish Lesser White-fronted Goose (Anser eryhtropus) project
(page 390)