MORPHOMETRICS OF THE WEDGE-TAILED EAGLE Aquila audax
| Posted: |
07/08/2021 |
| Author(s): |
Michael Brooker |
Morphological measurements were made from 233 wild Wedge-tailed Eagles
Aquila audax on
the Nullarbor Plain, 116 museum specimens from southern Australia and 30 dead birds from New
South Wales. In the birds from the Nullarbor Plain, reversed sexual size dimorphism (female larger
than male) was found in all characters examined. Among the museum specimens (a) I found no
evidence of geographical variation across southern mainland Australia and (b) a number of specimens
were probably incorrectly sexed. Overall, the length of tail appeared to increase with age in females
but not in males..
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