| Titre : | Ostrich 92(3) - August, 2021 |
| Type de document : | Bulletin |
| Paru le : | 01/08/2021 |
Dépouillements
Article
Guy M Kirwan, Auteur
The Pennant-winged Nightjar Caprimulgus vexillarius was described in 1838 by John Gould from a male in breeding plumage, but its given locality, various islands in the Indian Ocean and Red Sea coasts, was eventually deemed unreliable and replace[...]
Article
Peter W Greig-Smith, Auteur
This study explored reasons for variable nesting habits in a hole-nesting bird species that sometimes breeds colonially and sometimes alone. Nesting was surveyed over ten years in natural sand cliffs and similar features created by human activit[...]
Article
Krista N Oswald, Auteur ;
Alan TK Lee, Auteur
As an endemic bird to the Fynbos biome, prominently featured in literature and marketing material for the avifauna of the continent, the Cape Rockjumper Chaetops frenatus is an iconic species of South Africa. Building on studies from the past de[...]
Article
Alexis Osborne, Auteur ;
Peter G Ryan, Auteur
Scoring moult from live birds in the hand takes time, thereby increasing the handling stress to the birds. We show that digital photography can be used to efficiently study moult extent across multiple feather tracts. We photographed the upper w[...]
Article
Peter G Ryan, Auteur ;
E Molly Ryan, Auteur ;
James P Glass, Auteur
Most of the millions of burrow-nesting petrels that breed at Tristan da Cunha are susceptible to light pollution. On dark, misty nights, petrels become disoriented by artificial lights, mainly from ships. From 2013 to 2021 at least 1 823 petrels[...]
Article
Michael M Williams, Auteur ;
Ulf Ottosson, Auteur ;
Talatu Tende, Auteur ;
Justus P Deikumah, Auteur
The population of various species of vultures are declining rapidly across Africa, with noticeable declines in most areas including protected areas. This sudden decline of vultures in African countries, especially Nigeria, is quite alarming. One[...]
Article
Christina D Perella, Auteur ;
Jacob R Owens, Auteur ;
Drew T Cronin, Auteur
Bioko Island, Equatorial Guinea is a biodiversity hotspot facing encroaching development, logging, and hunting. Long-term monitoring of the species composition and community structure of birds on Bioko allows for a better understanding of the ef[...]
Article
Mourad Zemouri, Auteur ;
Lydia Asloune, Auteur ;
Aida Adrar, Auteur ;
Abdelouhab Bouchareb, Auteur ;
Abdelazize Franck Bougaham, Auteur
The Algerian Nuthatch is an endemic and protected bird species in Algeria, and its different habitats are threatened by fires and others human actions; the species is therefore considered ‘Endangered’. A faecal samples analysis of the species’ n[...]
