Table 2.
Sample sizes (number of raptor group tracks recorded by radar and laser rangefinder) and proportion of headings towards SE (headings between 90° and 180°, i.e. in the direction of the wind farm) at study and reference sites during autumn migration in 2009, 2010 and 2011.
| study (impact) site 2010–2011 |
Gedser reference site 2011 |
Rødbyhavn reference site 2009–2010 |
||||
|---|---|---|---|---|---|---|
| species | N | % headings towards SE | N | % headings towards SE | N | % headings towards SE |
| all raptors | 4368 | 48.98 | 5417 | 22.82 | 553 | 17.18 |
| buzzards | 1610 | 33.79 | 890 | 24.49 | 279 | 27.96 |
| sparrowhawk | 1083 | 45.34 | 2578 | 24.67 | 166 | 6.02 |
| kites | 746 | 48.66 | 434 | 12.44 | 10 | 20.00 |
| harriers | 468 | 54.06 | 272 | 8.46 | 43 | 0.00 |
| falcons | 404 | 65.10 | 1169 | 25.66 | 14 | 7.14 |