Grauer's broadbeak (variants: Grauer's hornbill, green broadbeak [1] ) ( Pseudocalyptomena graueri ) is one of the species of the horned -billed family ( Eurylaimidae ), which is a monotypic genus Pseudocalyptomena [2] . Its specific name is given in memory of the German zoologist Rudolf Grauer , who collected natural history collections in the Belgian Congo [3] .
| Shiroklyuv Grauer |
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| Scientific classification |
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| No rank : | Bilateral symmetric |
| Suborder : | Screaming passerines |
| Infrastructure : | Hornbills |
| Rod: | Pseudocalyptomena Rothschild, 1909 |
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| International Scientific Name |
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Pseudocalyptomena graueri
Rothschild , 1909 |
| Security status |
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Vulnerable speciesIUCN 3.1 Vulnerable : 22698719 |
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Baron Walter Rothschild , who described this species, believed that this is a flycatcher only outwardly similar to the Asian hornbeak of the genus Calyptomena , hence the name pseudo - or "false" Calyptomena [4] . At present, this species is regarded as a real cone and one of the few African representatives in this originally Asian family.
This species with a bright green plumage, a blue throat and a small beak, is quite different from other hornbills. Adults have a finely spotted ocher cap with longitudinal black stripes and a narrow black strip across the beak to the eye [4] .
It is found in tropical humid mountain forests and is endemic to the Albertine rift mountains in the Democratic Republic of the Congo and Uganda . In Uganda, this rare bird is found at a height of 2,100 to 2,200 meters in the forest of Bwindi [5] . The density is probably less than one individual per km 2 [6] .
Grauer's broadbill feeds on seeds and succulent fruits, flowers and flower buds, as well as some invertebrates [6] .
This species is rare, but currently only part of its range is protected. It is under threat of deforestation and habitat degradation, in general, including because its currently known area of distribution overlaps with areas in which there have been massive influxes of people in the recent past. It was classified as a vulnerable species by the IUCN nomenclature [6] .
