Table 2 List of water birds identified by drones in the Upo wetland

1

Tachybaptus ruficollis

2

1

2

2

Podiceps cristatus

2

2

3

Cygnus cygnus

220

50

220

4

Anser fabalis

1500

30

1500

5

Anas crecca

100

30

100

6

Anas platyrhynchos

500

150

500

7

Anas acuta

6

12

12

8

Anas poecilorhyncha

300

120

300

9

Anas clypeata

40

2

40

10

Fulica atra

1500

40

1500

11

Gallinula chloropus

7

7

12

Egretta garzetta

8

8

13

Ardea cinerea

20

5

20

14

Ardea alba

35

15

35

15

Egretta intermedia

3

12

12

16

Himantopus himantopus

2

2

17

Corvus macrorhynchos

2

2

18

Phalacrocoracidae spp.

10

10

19

Threskiornithidae spp.

11

11

20

Geese spp.

40

40

21

Ducks spp.

2000

300

2000

22

Small size ducks spp.

10

30

30

23

Scolopacidae spp.

5

5

24

Charadriidae spp.

5

5

25

Laridae spp.

1

1

26

Motacillidae spp.

2

2

22

18

26

6280

585

4042