Reference

Heiko Schmaljohann, Fränzi Korner-Nievergelt, Beat Naef-Daenze, Rolf Nagel, Ivan Maggini, Marc Bulte, Franz Bairlein (2013): Stopover optimization in a long-distance migrant: the role of fuel load and nocturnal take-off time in Alaskan northern wheatears (Oenanthe oenanthe) – Frontiers in Zoology – 2013: 0001-26-0013.