Taxonomic classification ⇿ Photos
The rufous-necked hornbill (Aceros nipalensis) belongs to the family Bucerotidae under the order Bucerotiformes.
The name Aceros means without horn or hornless. The species Aceros nipalensis lack obvious casque (horn-like structure). However the other three species under the genus Aceros, Aceros corrugatus, Aceros leucocephalus and Aceros waldeni have casques.
The family Bucerotidae includes 62 species. The species under family Bucerotidae are characterized by a heavy, long, down-curved bill, which is frequently brightly colored. Many species have a casque, a hollow structure, running along the upper mandible.
The species under the family Bucerotidae have two-lobed kidney. The heavy bill is supported by strong neck muscles and neck vertebrae. The neck vertebrae, atlas and axis, are fused together, providing a stable base for carrying the heavy bill.
| Taxonomic classification | |
|---|---|
| Binomial name: | Aceros nipalensis |
| Species: | A. nipalensis |
| Genus: | Aceros |
| Subfamily: | - |
| Family: | Bucerotidae |
| Order: | Bucerotiformes |
| Class: | Aves |
| Phylum: | Chordata |
| Kingdom: | Animalia |
 |
| 1.Rufous-necked hornbill - Aceros nipalensis - Photo by Rohit Naniwadekar |
 |
| 2.Rufous-necked hornbill - Aceros nipalensis - photo by Ujjal Ghosh |
 |
| 3.Aceros nipalensis - photo by Kalyanvarma |
 |
| 4.Aceros nipalensis - photo by Rohit Naniwadekar |
 |
| 5.Aceros nipalensis photo by Rohit Naniwadekar |
 |
| 6.Aceros nipalensis - photo by Rohit Naniwadekar |
 |
| 7.Rufous-necked hornbill - Aceros nipalensis - by Ujjal Ghosh |
 |
| 8.Aceros nipalensis - by Dibyendu Ash |
 |
| 9.Aceros nipalensis by Francesco Veronesi |
 |
| 10.Aceros nipalensis by Ron Knight |
1.Photo source: https://commons.wikimedia.org/wiki/File:Rufous-necked_hornbill_1.jpg (cropped)
Author: Rohit Naniwadekar | License: CC BY-SA 3.0
2.Photo source: https://commons.wikimedia.org/wiki/File:Rufous_Necked_Hornbill.jpg (cropped)
Author: Ujjal Ghosh | License: CC BY-SA 3.0
3.Photo source: https://en.wikipedia.org/wiki/File:Rufous-necked_Hornbill.jpg (cropped)
Author: Kalyanvarma | License: CC BY-SA 3.0
4.Photo source: https://commons.wikimedia.org/wiki/File:Rufous-necked_Hornbill_4.jpg (cropped)
Author: Rohit Naniwadekar | License: CC BY-SA 3.0
5.Photo source: https://commons.wikimedia.org/wiki/File:Rufous-necked_hornbill_3.jpg (cropped)
Author: Rohit Naniwadekar | License: CC BY-SA 3.0
6.Photo source: https://commons.wikimedia.org/wiki/File:Rufous-necked_hornbill_2.jpg (cropped)
Author: Rohit Naniwadekar | License: CC BY-SA 3.0
7.Photo source: https://en.wikipedia.org/wiki/File:Rufous_Necked_Hornbill_2.jpg (cropped)
Author: Ujjal Ghosh | License: CC BY-SA 3.0
8.Photo source: https://en.wikipedia.org/wiki/File:Rufous-necked_Hornbill_Mahananda_Wildlife_Sanctuary_West_Bengal_India_06.12.2015.jpg (cropped)
Author: Dibyendu Ash | License: CC BY-SA 3.0
9.Photo source: https://www.flickr.com/photos/francesco_veronesi/15788452203/ (cropped)
Author: Francesco Veronesi | License: CC BY-SA 2.0 as on 4/30/17
10.Photo source: https://www.flickr.com/photos/sussexbirder/8077032816/ (cropped)
Author: Ron Knight | License: CC BY 2.0 as on 4/30/17
Current topic in Birds of India: Rufous-necked hornbill (Aceros nipalensis) photos.
