Flying tracks, flight altitude and directions of movement of nocturnal migrant birds, as shown by marine radar

TAGO, K., TAKAHASHI, H., HAGIWARA, Y., MASUKO, O., YOKOYAMA, Y., KONDO, H., … HIGUCHI, H. (2020). Flying tracks, flight altitude and directions of movement of nocturnal migrant birds, as shown by marine radar. Japanese Journal of Ornithology, 69(1), 41–61. https://doi.org/10.3838/jjo.69.41