. Bonner zoologische Monographien. Zoology. 140. 415 White-tailed Hornbill (498) no map Bycanistes fistula tor duboisi LM? (3, 5) NBR rare lowland forest Remarks: Only recorded from Bengengai 4/27 (Hillman & Hillman 1986) with un- known status 416 Black and White Casqued Hornbill (500) Bycanistes subcylindricus subquadratus R LM NBR fairly common better wooded savanna, gallery forests Remarks: Some birds move north during the rains 417 Black-wattled Hornbill (503) no map Ceratogymna atrata R NBR uncommon bowl and gallery forests Remarks: Only recorded from Aloma Pla- teau 3/30 and Bengenga
. Bonner zoologische Monographien. Zoology. 140. 415 White-tailed Hornbill (498) no map Bycanistes fistula tor duboisi LM? (3, 5) NBR rare lowland forest Remarks: Only recorded from Bengengai 4/27 (Hillman & Hillman 1986) with un- known status 416 Black and White Casqued Hornbill (500) Bycanistes subcylindricus subquadratus R LM NBR fairly common better wooded savanna, gallery forests Remarks: Some birds move north during the rains 417 Black-wattled Hornbill (503) no map Ceratogymna atrata R NBR uncommon bowl and gallery forests Remarks: Only recorded from Aloma Pla- teau 3/30 and Bengengai 4/27 (Macdonald & Cave 1948) 418 Crowned Hornbill (509) no map Tockus alboterminatus geloensis R NBR uncommon better wooded savanna and gallery forests Remarks: Only recorded from Boma Hills 6/34 in January (Cave 1938) 419 Red-billed Dwarf Hornbill (514) no map Tockus camurus camurus R BR 2 uncommon gallery forest often near swampy ground Remarks: Only recorded from Bengengai 4/27 in February and March (Cave 1938, M. Tray lor). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Bonn, Zoologisches Forschungsinstitut und Museum Alexander Koenig
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Keywords: ., bookcentury1900, bookcollectionbiodiversity, booksubjectzoology
