2014 Fuelling in front of the barrier – are there age based behavioral differences in Garden Warblers Sylvia borin.

Barboutis, C., Henshaw, I., Kullberg, C., Nikolopoulou, S., Fransson, T. (2014) Fuelling in front of the barrier – are there age based behavioral differences in Garden Warblers Sylvia borin. PeerJ, 2, e319.