Boreal Owl
(Aegolius funereus)
Skull
 |
 |
 |
Dorsal View |
Ventral View |
Lateral
View |
Total Length Male =
45.72 - 49.75 mm Mean = 47.41 mm (n=13) Female = 44.53 - 50.07 mm Mean
= 48.46 mm (n=15)
Width Male = 39.45 - 41.54 mm Mean = 40.67 mm (n=13 ) Female =
39.28 - 43.95mm Mean = 41.89 mm
(n=14)
 |
 |
Right and
Left Anterior View |
Left
and Right Posterior View |
Total
Length Male = 21.76 - 23.18 mm Mean = 22.36 mm (n=14) Female = 21.74 -
24.83 mm Mean = 23.63 mm (n=13)
Proximal End Width Male = 5.60 - 6.80 mm Mean = 5.93 mm (n=14) Female
= 5.87 - 6.87 mm Mean = 6.45 mm (n=14)
Distal End Width Male = 6.76 - 8.05 mm Mean = 6.95 mm (n=14) Female
= 6.76 - 8.05 mm Mean = 7.54 mm (n=13)
|
|
 |
Right and Left Anterior View |
Left and Right Posterior View |
Total
Length Male = 47.87 - 51.35 mm Mean = 49.43 mm (n=14) Female = 49.55
- 55.06 mm Mean = 53.58 mm (n=14)
Proximal End Width Male = 5.71 - 7.33 mm Mean = 6.61 mm (n=14) Female
= 6.41 - 7.49 mm Mean = 7.16 mm (n=14)
Distal End Width Male = 6.04 - 7.08 mm Mean = 6.32 mm (n=14)
Female = 5.96 - 7.24 mm Mean = 6.80 mm (n=15)
 |
 |
Right and Left Anterior View |
Left and Right Posterior View |
Total
Length Male = 35.65 - 38.86 mm Mean = 36.92 mm (n=13) Female = 35.40
- 41.41 mm Mean = 39.10 mm (n=14)
Proximal End Width Male = 6.57 - 7.53 mm Mean = 6.92 mm (n=14) Female
= 6.35 - 7.70 mm Mean = 7.31 mm (n=15)
Distal End Width Male = 6.41 - 7.93 mm Mean = 6.75 mm (n=14) Female
= 6.18 - 8.08 mm Mean = 7.35 mm (n=15)
 |
 |
Right and Left Anterior View |
Left and Right Posterior View |
Total
Length Male = 46.75 - 50.66 Mean = 48.29 mm (n=12) Female = 44.41
-54.16 mm Mean = 51.03 mm (n=14)
Proximal End Width Male = 8.91 - 9.72 mm Mean = 9.16 mm (n=14) Female
= 8.17 - 10.53 mm Mean =9.57 mm (n=15)
Distal End Width Male = 8.12 - 9.19 mm Mean = 8.53 mm (n=14)
Female = 8.04 - 9.38 mm Mean = 8.99 mm (n=14)
 |
 |
Left and Right Extensor View |
Right and Left Palmer View |
Total
Length Male = 53.49 - 56.81 mm Mean = 54.87 mm (n=13) Female = 52.3
- 61.59 mm Mean = 58.12 mm (n=15)
Proximal End Width Male = 5.21 - 6.01 mm Mean = 5.41 mm (n=14) Female
= 5.01 - 6.02 mm Mean = 5.75 mm (n=15)
Distal End Width Male = 4.15 - 4.92 mm Mean = 4.50 mm (n=14) Female
= 3.77 - 5.14 mm Mean = 4.80 mm (n=15)
 |
 |
Right and Left Dorsal or Extensor View |
Left and Right Ventral or Palmar View |
Total
Length Male = 50.96 - 54.40 mm Mean = 52.73 mm (n=13) Female = 50.73
- 59.46 mm Mean = 55.98 mm (n=15)
Proximal End Width Male = 3.05 - 3.65 mm Mean = 3.35 mm (n=14) Female
= 3.06 - 3.87 mm Mean = 3.51 mm (n=15)
Distal End Width Male = 4.02 - 4.67 mm Mean = 4.29 mm (n=14) Female
= 3.25 - 4.89 mm Mean = 4.46 mm (n=15)
 |
 |
Right and Left Palmar View |
Left and Right Extensor View |
Total
Length Male = 23.56 - 26.03 mm Mean = 24.66 mm (n=14) Female = 22.98
- 27.59 mm Mean = 26.01 mm (n=15)
Proximal End Width Male = 5.27 - 5.87 mm Mean = 5.54 mm (n=13) Female
= 5.15 - 6.25 mm Mean = 5.84 mm (n=15)
Distal End Width Male = 4.58 - 5.48 mm Mean = 5.04 mm (n=14) Female
= 4.77 - 5.66 mm Mean = 5.29 mm (n=15)
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