TABLE 5.
The behavior of birds in response to the drone, broken down into groups of similar species
| Group of species | No of obs. | %: code #0 | %: code #1 | %: code #2 | %: code #3 | %: code #4 | %: code #5 |
|---|---|---|---|---|---|---|---|
| Anser | 65 | 41.5 | 9.2 | 0 | 13.8 | 35.8 | 0 |
| Anas group a | 24 | 41.6 | 37.5 | 0 | 12.5 | 8.3 | 0 |
| Diving birds b | 119 | 28.6 | 37.0 | 14.3 | 3.4 | 16.8 | 0 |
| Gulls | 36 | 88.8 | 5.6 | 0 | 5.6 | 0 | 0 |
| Terns | 28 | 75.0 | 3.8 | 0 | 10.7 | 0 | 10.7 |
Reaction codes – a bird: #0 – displayed no reaction; #1 – moved slowly away; #2 – dived; #3 – was flushed over a short distance but remained in the sample plot, or quickly returned; #4 – was scared away, exhibited a panic reaction, left the sample plot, and did not return; #5 – attacked the drone.
Bold values are adverse (unacceptable) reactions # 4 and # 5.
a
Ducks from the Anatini tribe consisted of the following genera: Anas, Mareca, and Spatula.
b
Group consisting of diving ducks from the genera Aythya, Bucephala, Melanitta, Mergus and Clangula, Coot Fulica atra, Great Crested Grebe Podiceps cristatus, and Cormorant Phalacrocorax carbo.