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Table 3 Parameters of barbs of barn owl's and pigeon's wing feathers

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

   barn owl      pigeon     
  lbn 2 nhr 1 nbr 1 nh 1 αhr 1 αbr 1 nhr 1 nbr 1 nh 1 αhr 1 αbr 1
p10 0.75 35 +/- 1.1 28 +/- 0.6 1 +/- 0.3    50 +/- 2.4 39 +/- 1.3 6 +/- 0.2 23 +/- 1.4 21 +/- 1.3
outer 0.5 39 +/- 0.7 30 +/- 0.5 3 +/- 0.1 50 +/- 1.3 36 +/- 1.6 51 +/- 2.0 36 +/- 0.8 6 +/- 0.1 32 +/- 1.9 27 +/- 1.3
vane 0.25 42 +/- 0.8 32 +/- 0.9 3 +/- 0.1 56 +/- 1.1 38 +/- 1.8 55 +/- 1.6 37 +/- 0.7 5 +/- 0.2 44 +/- 1.2 34 +/- 1.0
p10 0.8 26 +/- 0.8 18 +/- 0.6 4 +/- 0.1 40 +/- 1.4 16 +/- 0.9 43 +/- 1.1 31 +/- 0.8 5 +/- 0.4 33 +/- 2.6 21 +/- 1.0
inner 0.6 27 +/- 0.6 18 +/- 0.3 4 +/- 0.1 41 +/- 1.2 17 +/- 0.9 48 +/- 0.7 48 +/- 0.7 4 +/- 0.3 42 +/- 1.4 25 +/- 0.8
vane 0.4 31 +/- 0.6 18 +/- 0.4 3 +/- 0.1 48 +/- 1.6 21 +/- 1.0 55 +/- 1.9 33 +/- 0.5 3 +/- 0.1 49 +/- 1.6 28 +/- 0.7
  0.2 36 +/- 0.7 19 +/- 0.5 3 +/- 0.1 60 +/- 1.6 24 +/- 1.7 56 +/- 1.9 34 +/- 0.8 4 +/- 0.1 49 +/- 1.4 33 +/- 0.9
s8 0.8 26 +/- 1.3 22 +/- 1.5 2 +/- 0.5 29 +/- 3.0 25 +/- 2.0 42 +/- 1.9 32 +/- 1.8 4 +/- 0.6 34 +/- 1.4 29 +/- 0.6
outer 0.6 27 +/- 0.9 21 +/- 0.8 3 +/- 0.2 39 +/- 1.2 25 +/- 0.7 39 +/- 0.9 30 +/- 1.1 5 +/- 0.3 34 +/- 0.6 27 +/- 0.6
vane 0.4 30 +/- 0.3 22 +/- 0.4 3 +/- 0.1 43 +/- 1.3 30 +/- 1.4 41 +/- 0.8 30 +/- 0.4 5 +/- 0.2 38 +/- 0.5 22 +/- 1.0
  0.2 35 +/- 0.8 24 +/- 0.8 3 +/- 0.1 51 +/- 1.1 31 +/- 0.5 41 +/- 1.0 30 +/- 0.5 5 +/- 0.2 42 +/- 1.2 20 +/- 1.5
s8 0.8 34 +/- 1.2 21 +/- 0.7 3 +/- 0.1 44 +/- 1.1 19 +/- 0.8 39 +/- 1.7 30 +/- 1.4 5 +/- 0.2 41 +/- 1.5 25 +/- 0.8
inner 0.6 32 +/- 1.1 19 +/- 0.4 3 +/- 0.1 45 +/- 1.1 20 +/- 0.8 37 +/- 0.8 28 +/- 0.8 5 +/- 0.1 44 +/- 1.4 26 +/- 0.8
vane 0.4 31 +/- 0.6 18 +/- 0.2 3 +/- 0.1 49 +/- 1.0 17 +/- 0.5 41 +/- 1.0 30 +/- 0.9 5 +/- .01 39 +/- 0.8 20 +/- 0.7
  0.2 34 +/- 0.7 21 +/- 0.5 3 +/- 0.1 58 +/- 0.8 24 +/- 0.8 40 +/- 1.2 31 +/- 0.5 5 +/- 0.1 42 +/- 1.5 21 +/- 2.0
gpc1 0.8 23 +/- 0.4 20 +/- 0.8 2 +/- 0.2 35 +/- 2.6 29 +/- 2.3 39 +/- 1.4 30 +/- 1.2 5 +/- 0.2 22 +/- 1.3 16 +/- 0.4
outer 0.6 25 +/- 0.4 21 +/- 0.6 3 +/- 0.1 24 +/- 4.3 15 +/- 3.1 42 +/- 1.7 30 +/- 1.0 4 +/- 0.2 27 +/- 1.3 21 +/- 0.6
vane 0.4 30 +/- 0.7 22 +/- 0.9 3 +/- 0.2 42 +/- 0.7 28 +/- 0.5 44 +/- 1.3 31 +/- 1.0 4 +/- 0.1 36 +/- 0.8 26 +/- 0.7
  0.2 33 +/- 1.0 23 +/- 0.5 3 +/- 0.1 45 +/- 0.8 39 +/- 1.9 42 +/- 1.3 31 +/- 1.0 4 +/- 0.2 43 +/- 1.4 29 +/- 0.7
gpc1 0.8 27 +/- 3.5 24 +/- 3.0 2 +/- 0.4 32 +/- 1.3 25 +/- 0.7 38 +/- 1.2 29 +/- 1.5 5 +/- 0.6 35 +/- 1.2 16 +/- 0.3
inner 0.6 28 +/- 2.0 22 +/- 1.8 3 +/- 0.1 25 +/- 4.4 26 +/- 0.2 38 +/- 0.7 27 +/- 1.2 4 +/- 0.1 36 +/- 1.0 19 +/- 0.4
vane 0.4 31 +/- 1.5 22 +/- 1.6 3 +/- 0.1 42 +/- 1.3 17 +/- 3.1 40 +/- 1.0 28 +/- 0.7 4 +/- 0.1 42 +/- 0.9 23 +/- 0.5
  0.2 34 +/- 1.0 23 +/- 0.9 3 +/- 0.2 45 +/- 1.2 18 +/- 0.5 42 +/- 1.6 30 +/- 0.9 4 +/- 0.2 49 +/- 1.6 29 +/- 0.5
  1. 1 mean values with standard error of the mean, N = 16
  2. 2 normalised length of barb; 1 = tip of barb