Table 2 Distribution of sedge warbler males and females with different levels of total parasitaemia, presented separately for the first-capture and the recapture sample, compared by Chi-square test.

From: Afro-Palaearctic migrant birds rid themselves of haemoparasite infections when breeding in the temperate zone

Level of parasitaemia

Males (98)

Females (19)

All (117)

Capture

Recapture

Capture

Recapture

Capture

Recapture

Uninfected (0)

20

45

3

9

23

54

Low (< = 20)

57

49

9

9

66

58

Moderate (21–100)

16

4

3

1

19

5

High (> 100)

5

0

4

0

9

0

 

χ2 = 22.42

p < 0.0001

χ2 = 8.0

p = 0.046

χ2 = 30.16

p < 0.0001