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Bird Topography: Seven Regions. Fig. A, Poldulka et al. 2004. A) Bill. 15. Bill. 16. Bill. 18. Bill Diversity. 28. 29. Blue Grosbeak. Yellow-Rumped Warbler. 30 Bullock’s Oriole. Blue-Throated Hummingbird. 31. King Vulture. Peregrine Falcon. 32. 31. Bill Diversity.
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Bird Topography: Seven Regions Fig. A, Poldulka et al. 2004
A) Bill 15
Bill 16
Bill 18
Bill Diversity 28 29 Blue Grosbeak Yellow-Rumped Warbler 30 Bullock’s Oriole
King Vulture Peregrine Falcon 32 31
Bill Diversity Long-Billed Curlew American Avocet Roseate Spoonbill 20 19 18
Bill Diversity Black Skimmer 20 21
24 23
Red Crossbill White-Winged Crossbill 26 25
Whalebill 27
B) HEAD AND C) NECK Gular Region Malar Region Jugulum Side of Neck
Red-Naped Sapsucker Yellow-Bellied Sapsucker 5 3
Chipping Sparrow Brewer’s Sparrow 10 4
Ears? 14
External Ear Openings (and Auricular Feathers) Fig. 1-5 in Podulka et al. 2004