129
Lewis, D., We, the Navigators, op. cit. P. 123.
130
Ibid. P. 162, 163.
131
Ibid. P. 170 ff.
132
Ibid. P. 224 ff.
133
Gladwin, East is a Big Bird. P. 196 ff.
134
Anser indicus.
135
Swan, L. W., Tales of the Himalaya: Adventures of a Naturalist (Mountain N’ Air Books, 2000).
136
Hawkes, L. A., Batbayar, N., Butler, P. J., Chua, B., Frappell, P. B., Meir, J. U., … & Takekawa, J. Y. (2017). ‘Do bar-headed geese train for high altitude flights?’, Integrative and Comparative Biology, 57 (2). P. 240–251.
