Are these animals of different types?
No, all the animals are birds.
    src        edge_attr  dst
0     0  to the right of   12
1     0  to the right of    8
2     1               of   13
3     3  to the right of   22
4     3  to the right of   21
5     3  to the right of   18
6     3  to the right of    6
7     4  to the right of   16
8     5               of   16
9     5   to the left of   10
10    5   to the left of   17
11    6  to the right of   21
12    6   to the left of    3
13    7  to the right of   15
14    8   to the left of   21
15    8   to the left of    0
16    9  to the right of   23
17   10               on   13
18   10  to the right of    5
19   10  to the right of   16
20   12               of   13
21   12   to the left of    0
22   12   to the left of   21
23   13          full of    9
24   13          full of   23
25   13          full of   10
26   13            below   24
27   15   to the left of    7
28   16   to the left of    4
29   16               on   13
30   16   to the left of   17
31   16   to the left of   10
32   17  to the right of   16
33   17  to the right of    5
34   18               of   13
35   18  to the right of   21
36   18   to the left of    3
37   19               of   10
38   20  to the right of   22
39   20  to the right of   21
40   21   to the left of   18
41   21   to the left of   20
42   21   to the left of    6
43   21   to the left of    3
44   21   to the left of   22
45   21  to the right of    8
46   21  to the right of   12
47   22   to the left of   20
48   22  to the right of   21
49   22   to the left of    3
50   23   to the left of    9