Are the animals the same species?
No, there are both pigeons and birds.
     src        edge_attr  dst
0      0  to the right of   11
1      0   to the left of   10
2      0   to the left of    2
3      0   to the left of    1
4      0   to the left of   18
..   ...              ...  ...
119   26   to the left of    2
120   26   to the left of   18
121   27  to the right of    0
122   27   to the left of   18
123   27  to the right of   25

[124 rows x 3 columns]