Caldow, R. W. G., Goss-Custard, J. D., Guillemain, M., & Hodder, K. H. Increased vigilance of paired males in sexually dimorphic species: Distinguishing between alternative explanations in wintering Eurasian wigeon.

Caldow, Richard W. G., John D. Goss-Custard, Matthieu Guillemain, و Kathy H. Hodder. Increased Vigilance of Paired Males in Sexually Dimorphic Species: Distinguishing between Alternative Explanations in Wintering Eurasian Wigeon.

Caldow, Richard W. G., John D. Goss-Custard, Matthieu Guillemain, و Kathy H. Hodder. Increased Vigilance of Paired Males in Sexually Dimorphic Species: Distinguishing between Alternative Explanations in Wintering Eurasian Wigeon.