Northern Hawk
Owl
(Surnia ulula)
Skull
 |
|
 |
| Dorsal
View |
Ventral View |
Lateral View
|
Total Length Male =
53.89 - 58.18 mm Mean = 56.20 mm (n=9) Female = 55.41 - 59.85 mm Mean
= 56.82 mm (n=10)
Width Male = 37.09 - 43.44 mm Mean = 41.07 mm (n=11) Female =
37.28 - 44.10 mm Mean = 41.53 mm (n=13)
 |
 |
Right and Left Anterior View |
Left and Right Posterior View |
Total Length Male = 23.82 -
25.75 mm Mean = 25.04 mm (n=13) Female = 24.58 - 26.91 mm Mean = 25.68
mm (n=14)
Proximal End Width Male = 8.42 - 9.15 mm Mean = 8.73 mm (n=10) Female
= 8.42 - 9.62 mm Mean = 9.12 mm (n=10)
Distal End Width Male = 9.88 - 10.39 mm Mean = 10.09 mm (n=10) Female
= 10.18 - 10.93 mm Mean = 10.58 mm (n=10)
|
|
 |
Right and Left Anterior View |
Left and Right Posterior View |
Total Length Male = 60.96 - 66.05 mm Mean
= 64.19 mm (n=13) Female = 62.53 - 68.86 mm Mean = 65.17 mm (n=12)
Proximal End Width Male = 9.05 - 9.72 mm Mean = 9.34 mm (n=10) Female
= 9.11 - 10.13 mm Mean = 9.49 mm (n=10)
Distal End Width Male = 8.37 - 9.36 mm Mean = 8.82 mm (n=10)
Female = 8.64 - 9.72 mm Mean = 9.32 mm (n=10)
 |
 |
Right and Left Anterior View |
Left and Right Posterior View |
Total Length Male = 47.78 - 49.66 mm Mean
= 48.53 mm (n=13) Female = 48.05 - 50.80 mm Mean = 49.43 mm (n=13)
Proximal End Width Male = 9.45 - 10.50 mm Mean = 9.82 mm (n=10) Female
= 9.43 - 11.03 mm Mean = 10.12 mm (n=10)
Distal End Width Male = 8.84 - 9.87 mm Mean = 9.42 mm (n=10) Female
= 9.40 - 10.35 mm Mean = 9.85 mm (n=10)
 |
 |
| Right and Left Anterior View |
Left and Right Posterior View |
Total Length Male = 65.01 - 67.78 mm Mean
= 66.82 mm (n=12) Female = 65.13 - 70.44 mm Mean = 68.27 mm (n=13)
Proximal End Width Male = 12.41 - 13.26 mm Mean = 12.96 mm (n=10)
Female = 12.31 - 13.91 mm Mean = 13.18 mm (n=10)
Distal End Width Male = 11.72 - 12.19 mm Mean = 12.00 mm (n=10)
Female = 11.79 - 12.76 mm Mean = 12.38 mm (n=10)
 |
 |
Left and Right Extensor View |
Right and Left Palmer View |
Total Length Male = 73.19 - 77 88 mm Mean
= 76.41 mm (n=13) Female = 74.52 - 81.11 mm Mean = 78.13 mm (n=14)
Proximal End Width Male = 7.63 - 8.24mm Mean = 7.83 mm (n=10) Female
= 7.71 - 8.41 mm Mean = 8.06 mm (n=10)
Distal End Width Male = 6.07 - 7.01 mm Mean = 6.60 mm (n=10) Female
= 6.52 - 7.28 mm Mean = 6.95 mm (n=10)
 |
 |
Right and Left Dorsal or Extensor View |
Left and Right Ventral or Palmar View |
Total Length Male = 70.06 - 74.96 mm Mean
= 73.29 mm (n=12) Female = 71.27 - 77.82 mm Mean = 74.98 mm (n=14)
Proximal End Width Male = 4.63 - 5.01 mm Mean = 4.79 mm (n=10) Female
= 4.69 - 5.46 mm Mean = 5.00 mm (n=10)
Distal End Width Male = 5.69 - 6.55 mm Mean = 6.19 mm (n=10) Female
= 5.82 - 6.86 mm Mean = 6.42 mm (n=10)
 |
 |
Right and Left Palmar View |
Left and Right Extensor View |
Total Length Male = 37.23 - 39.30 mm Mean
= 38.20 mm (n=13) Female = 37.07 - 40.64 mm Mean = 39.25 mm (n=13)
Proximal End Width Male = 7.42 - 8.14 mm Mean = 7.78 mm (n=10) Female
= 7.55 - 8.54 mm Mean = 7.88 mm (n=10)
Distal End Width Male = 6.44 - 6.91 mm Mean = 6.63 mm (n=10) Female
= 6.61 - 7.17 mm Mean = 6.82 mm (n=10)
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