Eastern Screech-Owl
(Megascops asio)
Skull
 |
 |
 |
Dorsal View |
Ventral View |
Lateral
View |
Total Length Male =
49.40 - 54.01mm Mean = 51.38 mm (n=11) Female = 50.77 - 54.39 mm Mean
= 52.21 mm (n=12)
Width Male =38.62 - 42.22 mm Mean = 40.80 mm (n=8) Female = 37.54
- 41.89 mm Mean =40.29 mm (n=11)
 |
 |
Right and Left Anterior View |
Left and Right Posterior View |
Total
Length Male = 32.72 - 35.81mm Mean = 34.43 mm (n=11) Female = 31.39 -
35.03 mm Mean = 34.08 mm (n=12)
Proximal End Width Male = 6.46 - 7.02 mm Mean = 6.70 mm (n=11) Female
= 6.70 - 7.25 mm Mean = 7.03 (n=12)
Distal End Width Male = 7.06 - 8.01 mm Mean = 7.50 mm (n=12) Female
= 7.25 - 8.35 mm Mean = 7.86 mm (n=12)
|
|
 |
Right and Left Anterior View |
Left and Right Posterior View |
Total Length Male = 53.25
- 59.37 mm Mean = 56.85 mm (n=12) Female = 56.05 - 58.58 mm
Mean = 57.51 mm (n=12)
Proximal End Width Male 6.39 - 7.47 mm Mean = 7.07 mm (n=12)
Female = 6.70 - 7.92 mm Mean = 7.39 mm (n=12)
Distal End Width Male = 6.70 - 7.41 mm Mean = 6.96 mm (n=12)
Female = 6.69 - 7.68 mm Mean = 7.32 mm (n=12)
 |
 |
Right and Left Anterior View |
Left and Right Posterior View |
Total
Length Male = 38.10 - 42.56 mm Mean = 40.80 mm (n=12) Female =
39.74 - 42.24 mm Mean = 41.2 mm (n=13)
Proximal End Width Male = 6.63 - 7.44 mm Mean = 7.05 mm (n=12)
Female = 6.94 - 7.59 mm Mean = 7.35 mm (n=13)
Distal End Width Male = 6.90 - 7.75 mm Mean = 7.12 mm (n=12) Female
= 7.16 - 8.10 mm Mean = 7.60 mm (n=13)
 |
 |
Right and Left Anterior View |
Left and Right Posterior View |
Total Length Male = 51.01 - 55.72 mm Mean
= 53.98 mm (n=12)
Female = 53.42 - 57.44 mm
Mean = 55.28 mm (n=12)
Proximal End Width Male 8.94 - 10.00 mm Mean = 9.59 mm (n=12)
Female 9.24 - 10.48 mm Mean = 9.98 mm (n=12)
Distal End Width Male = 8.69 - 9.73 mm Mean = 9.17 mm (n=12) Female
= 9.01 - 10.29 mm Mean = 9.65 mm (n=12)
 |
 |
Left and Right Extensor View |
Right and Left Palmer View |
Total
Length Male = 58.67 - 62.88 mm Mean = 60.78 mm (n=11) Female =
60.64 - 64.74 mm Mean = 62.37 mm (n=10)
Proximal End Width Male = 5.41 - 6.28 mm Mean = 5.80 mm (n=12) Female
= 5.55 - 6.52 mm Mean = 6.06 mm (n=11)
Distal End Width Male = 4.27 - 5.85 mm Mean = 4.80 mm (n=12) Female
= 4.56 - 5.30 mm Mean = 5.06 mm (n=12)
 |
 |
Right and Left Dorsal or Extensor View |
Left and Right Ventral or Palmar View |
Total
Length Male = 56.17 - 60.45 mm Mean = 58.50 mm (n=12) Female 58.34
- 61.62 mm Mean = 59.74 mm (n=10)
Proximal End Width Male = 3.16 - 3.83 mm Mean = 3.50 mm (n=12) Female
=3.17 - 3.99 mm Mean = 3.73 mm (n=11)
Distal End Width Male = 4.20 - 5.10 mm Mean =4.69 mm (n=12) Female
= 4.52 - 5.42 mm Mean = 4.89 mm (n=11)
 |
 |
Right and Left Palmar View |
Left and Right Extensor View |
Total
length Male = 27.36 - 30.86 mm Mean = 28.74 mm (n=12) Female =
27.4 - 30.23 mm Mean = 29.3 mm (n=11)
Proximal End Width Male = 5.61 - 5.91 mm Mean = 5.79 mm (n=12)
Female = 5.35 - 6.22 mm Mean = 5.97 mm (n=11)
Distal End Width Male = 4.87 - 5.73 mm Mean = 5.29 mm (n=12) Female
= 5.13 - 6.10 mm Mean = 5.61 mm (n=12)
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