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Table 2 Morphometric parameters of barn owl's and pigeon's coverts

From: Morphometric characterisation of wing feathers of the barn owl Tyto alba pratincola and the pigeon Columba livia

barn owl

 

gpc10

gpc9

gpc5

gpc1

gsc5

gsc9

length of rachis

[cm]

5.74; 6.27

8.55; 8.97

9.83; 10.30

8.47; 8.96

8.14; 9.10

7.65

area of outer vane

[cm2]

1.80; 1.85

3.43; 3.41

7.64; 8.52

7.95; 8.22

11.28; 12.11

9.05; 9.20

area of inner vane

[cm2]

3.09; 3.55

7.45; 8.71

12.47; 14.89

10.73; 11.34

12.62; 13.93

10.92; 12.42

AI (area)

 

-0.29

-0.41

-0.26

-0.15

-0.06

-0.12

lserr a/lfr b ov

[mm]

1.46a +/- 0.16

1.91b +/- 0.51

1.53b +/- 0.54

3.46b +/- 0.33

7.18b +/- 2.9

5.89b +/- 2.58

lfr b inner vane

[mm]

6.1b +/- 1.57

4.63b +/- 0.69

5.66b +/- 1.22

3.78b +/- 0.71

4.74b +/- 1.02

4.44b +/- 1.26

pigeon

 

gpc10

gpc9

gpc5

gpc1

gsc5

gsc10

length of rachis

[cm]

4.32; 4.59

6.88

8.36

6.91

7.18; 7.75

6.24; 7.26

area of outer vane

[cm2]

0.65; 0.65

1.53; 1.93

3.47; 3.72

5.36; 3.43

6.35; 6.84

5.63; 7.44

area of inner vane

[cm2]

1.41; 1.19

3.84; 3.62

4.96; 5.70

6.12; 4.17

5.92; 6.65

5.04; 6.56

AI (area)

 

-0.33

-0.37

-0.19

-0.08

0.02

0.06

  1. a length of serration with standard error of the mean, N = 8
  2. b mean length of fringe with standard error of the mean, N = 8