Fieldwork

2018 Grid mapping of great reed warbler (Acrocephalus arundinaceus) in Potsdam (Brandenburg). Organized by Wolfgang Mädlow (Landtag Brandenburg) and Fachgruppe Ornithologie für Vogelfreunde, NABU-Kreisverband-Potsdam, Germany

2017 Grid mapping of tawny owl (Strix aluco) in Potsdam (Brandenburg). Organized by Froelich & Sporbeck, Environmental Consulting and Planning (Dipl.-Geografin Romy Reichel), and Fachgruppe Ornithologie für Vogelfreunde, NABU-Kreisverband-Potsdam, Germany

2016 Grid mapping of European goldfinch (Carduelis carduelis) and European serin (Serinus serinus) in Potsdam (Brandenburg). Organized by Froelich & Sporbeck, Environmental Consulting and Planning (Dipl.-Geografin Romy Reichel), and Fachgruppe Ornithologie für Vogelfreunde, NABU-Kreisverband-Potsdam, Germany

2015 Grid mapping of little owl (Athene noctua) in Nuthe-Nieplitz-Niederung (Brandenburg). Organized by Landschafts- Förderverein Nuthe-Nieplitz Niederung e.V. (Peter Koch), Fachbüro für Natur- und Artenschutz Terra Typica Hartleb & Hartleb GbR (Dipl.-Biol. Kay-Uwe Hartleb), and Fachgruppe Ornithologie für Vogelfreunde, NABU-Kreisverband-Potsdam, Germany

2005 Genetically confirmed interbreeding between western Bonelli’s warbler (Phylloscopus bonelli) and wood warbler (P. sibilatrix) in Germany. With Dr. Christian Dietzen

2003 Estimating abundance of birds. Potential use of native forests. Chanquín Community, Chiloé Island, Chile. Faculty of Biological Sciences, Pontificia Universidad Católica de Chile. Funded by Senda Darwin, Chile

1997 Chile: An Extreme Land. Natural History Documentary. New Zealand Television and BBC of London

1995 Phylogeny of Charadriiformes. Expedition to Central-Southern Chile and Argentina. With Prof. Dr. Allan J. Baker (Director) and Mark Peck. Biodiversity and Conservation Biology Centre of the Royal Ontario Museum, Canada

1994–1995 Lake eutrophication by salmon aquaculture in Southern-Central Chile. With Dr. Hermann A. Mühlhauser. University of Chile, Faculty of Science. Fondo Nacional Científico y Tecnológico (FONDECYT), Chile

1993–1998 Population biomonitoring of sanderling (Calidris alba). With Dr. Michael Sallaberry. Western Hemisphere Shorebird Reserve Network and Manoment Bird Observatory. Funded by W. Alton Jones Foundation

1993–1994 Arturo Merino Benítez Airport bird hazard management. With Dr. Michel Sallaberry and Dr. José Valencia, Faculty of Science, University of Chile

1992–1998 Genetic study of red-backed hawk (Buteo polyosoma) in Chile and neighbouring countries. With Dr. Craig Farquhar. Funded by the American Museum of Natural History, New York

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