Around the World of Vultures & VSG activities

Louis Phipps — Tue, 17 Dec 2024 00:00:00 +0000

No abstract.

Ageing Palm-nut vultures: A preliminary guide

Warren Goodwin — Tue, 17 Dec 2024 00:00:00 +0000

Significant knowledge gaps currently exist for the Palm-nut Vulture Gypohierax angolensis, particularly pertaining to the ageing of both nestlings and free-flying birds. Although the most reliable ageing scheme involves the detailed examination of a bird in the hand, a method based on more easily observable morphological characteristics is required. The captive breeding and rearing of an individual of this species presented an opportunity for the use of retrospective photography as a primary data source in this regard. Further cross-matching with additional images of free-flying wild birds was necessary for the development of descriptions considered more useful for field purposes. While this study ascertained that adult plumage is attained in the late fourth year, and provided much of the supplementary detail, it should be considered as preliminary. Further data pertaining to the nestling stages and general behavioural characteristics is required. Facilities that breed this species should thus be encouraged to collect and collate relevant mensural and photographic data going forward.

Another case of communal breeding in the White-backed Vulture Gyps africanus

Ivaylo Angelov, Yilma Delelegn Abebe, Tsvetomira Yotsova, Vladimir Dobrev — Tue, 17 Dec 2024 00:00:00 +0000

No abstract.

A rare photo from The Gambia of a pair of White-headed Vultures Trigonoceps occipitalis illustrates dimorphism in colour; in celebration of Peter J. Mundy (1941- 2023)

Clive R Barlow, Fansu Bojang, Alastair Henderson — Tue, 17 Dec 2024 00:00:00 +0000

No abstract.

Vulture News

Around the World of Vultures & VSG activities

Ageing Palm-nut vultures: A preliminary guide

Another case of communal breeding in the White-backed Vulture Gyps africanus

A rare photo from The Gambia of a pair of White-headed Vultures Trigonoceps occipitalis illustrates dimorphism in colour; in celebration of Peter J. Mundy (1941- 2023)