Rock sparrow song reflects male age and reproductive success. by Erwin Nemeth, Bart Kempenaers, Giuliano Matessi, Henrik Brumm

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The invasive parasitic fly Philornis downsi is threatening Little Vermilion Flycatchers on the Galápagos Islands by Denis Mosquera, Birgit Fessl, David Anchundia, Eileen Heyer, Celina Leuba, Erwin Nemeth, Maria Lorena. Rojas, Christian Sevilla, Sabine Tebbich

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Invasive parasites, habitat change and heavy rainfall reduce breeding success in Darwin's finches. by Arno Cimadom, Angel Ulloa, Patrick Meidl, Markus Zöttl, Elisabet Zöttl, Birgit Fessl, Erwin Nemeth, Michael Dvorak, Francesca Cunninghame, Sabine Tebbich

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