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62 SECTION I III The Birds

Figure 5-7 • Close-up medial view of the cubital joint of a great horned owl showing the relative difference in the size of the radius
compared with that of the ulna.

Figure 5-8 • The defl eshed elbow of a great horned owl seen Figure 5-9 • Lateral view of the radius and ulna in a Canadian
from a fl exed, caudolateral perspective shows that (1) the lateral goose (prepared specimen). Note that the ulna, left center, is
half of the distal humeral condyle is about twice the width of its approximately twice as thick as the adjacent radius.
medial counterpart and (2) the olecranon is little more than a pair
of partially fused tubercles forming a shallow ledge.

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