Table 1.
Axial headings of landing in 14 species of birds
| Species | n | mμ (axial) | Circular SD | r | p |
|---|---|---|---|---|---|
|
Alopochen aegyptiacus |
189 |
175°/355° |
28° |
0.631 |
< 0.01 |
|
Anas penelope |
91 |
7°/187° |
16° |
0.858 |
< 0.01 |
|
Anas platyrhynchos |
2431 |
9°/189° |
30° |
0.575 |
< 0.01 |
|
Anser anser |
16 |
6°/186° |
29° |
0.605 |
0.50 > p > 0.10 |
|
Aythya ferina |
155 |
8°/188° |
31° |
0.558 |
< 0.01 |
|
Cygnus olor |
15 |
3°/183° |
28° |
0.616 |
< 0.01 |
|
Dendrocygna viduata |
30 |
4°/184° |
28° |
0.625 |
< 0.01 |
|
Larus canus |
107 |
6°/186° |
14° |
0.885 |
< 0.01 |
|
Larus ridibundus |
119 |
19°/199° |
44° |
0.301 |
< 0.01 |
|
Mergellus albellus |
33 |
3°/183° |
22° |
0.735 |
< 0.01 |
|
Mergus merganser |
22 |
5°/185° |
17° |
0.846 |
< 0.01 |
|
Nettapus auritus |
14 |
176°/356° |
23° |
0.723 |
< 0.01 |
|
Vanellus armatus |
31 |
177°/357° |
29° |
0.608 |
< 0.01 |
| Vanellus coronatus | 85 | 179°/359° | 27° | 0.643 | < 0.01 |
n refers to the number of recordings (flocks), mμ: mean vector with respect to magnetic North, r: vector length, p: probability value of Rayleigh statistics.