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Table 1 Morphometric measurements and stable isotope values for males of the ssp. oenanthe in three different regions of their wintering range. Values are given ± SD

From: Morphometrics and stable isotopes differentiate wintering populations of a migratory bird

 

Kenya (N = 14) a

Mauritania/Mali (N = 16) a

Niger (N = 29) a

Wing chord [mm]

99.3 ± 2.4

97.7 ± 4.4

97.0 ± 2.4

Tarsus [mm]

28.4 ± 0.9

27.4 ± 0.8

27.2 ± 1.0

Bill length [mm]

20.5 ± 0.6

20.0 ± 0.8

19.5 ± 0.7

Bill depth [mm]

4.1 ± 0.2

4.2 ± 0.3

4.0 ± 0.3

Bill width [mm]

3.8 ± 0.2

3.8 ± 0.2

3.7 ± 0.2

c2-index

0.36 ± 0.09

0.28 ± 0.11

0.29 ± 0.13

c3-index

−1.08 ± 0.13

−1.13 ± 0.19

−1.12 ± 0.19

δ2H [‰] a

−47.39 ± 5.56

−52.94 ± 12.20

−65.29 ± 8.96

δ15N [‰]

7.79 ± 1.47

6.76 ± 2.36

10.85 ± 2.48

δ13C [‰]

−23.23 ± 0.70

−23.39 ± 0.75

−22.58 ± 1.16

  1. a Sample sizes for δ2H. Kenya: N = 11; Mauritania/Mali: N = 13; Niger: N = 14