Iwajomo, S. B., Ottosson, U., Barshep, Y., Helseth, A., Hulme, M. F., Stevens, M., & Waldenström, J. (2011). The stopover behaviour of the Garden Warbler Sylvia borin in Obudu, southeast Nigeria. Ornis Svecica, 21(1), 29–36. https://doi.org/10.34080/os.v21.22608