Results 51 to 60 of about 1,483 (201)

Land birds on atolls: diversity, origin, and function

Biological Reviews, EarlyView.
ABSTRACT Oceanic islands are global hotspots of avian biodiversity and endemism. Their isolation and distinct environmental conditions have uniquely shaped the evolutionary trajectories of island birds, while, in turn, land bird communities have become critical providers of ecological functions to island ecosystems.
Sebastian Steibl, Alex S. Wegmann, Nick D. Holmes, Caitlin E. Andrews, Gérard Rocamora, Simon Ducatez, James C. Russell   +6 more
wiley   +1 more source

The Late Agricultural Development of Central Arabian Oases—Archaeobotanical and Archaeozoological Studies of the al‐Kharj Oasis

Arabian Archaeology and Epigraphy, EarlyView.
ABSTRACT While oasis settlements emerged during the Bronze Age in Eastern and Northern Arabia, the settlement process in Central Arabia was different. Excavations at al‐Yamāma—main ancient settlement of the al‐Kharj oasis (Riyadh Province, KSA)—suggest that the latter did not emerge before the second half of the first millennium BCE.
Elora Chambraud, Hervé Monchot, Vladimir Dabrowski, Charlène Bouchaud, Jérémie Schiettecatte   +4 more
wiley   +1 more source

Variation in forest area influences post‐fledging development and dispersal onset in the Eurasian Goshawk (Astur gentilis)

Ibis, EarlyView.
Natal dispersal is a key ecological process influencing gene flow, population connectivity and individual fitness. In altricial birds, the transition from fledging to natal dispersal is mediated by the post‐fledging dependence period, which is often difficult to observe in elusive, forest‐dwelling species.
Elouise Mayall, Thomas Bodey, Paul Caplat, David Anderson, D. Philip Whitfield, Xavier Lambin   +5 more
wiley   +1 more source

Vultures and Kites from Marala Wetlands

Journal of Bioresource Management, 2019
The family Accipitridae consists of approximately 254 known living species that include eagles, hawks, vultures and kites. Forty species from this family are extant in Pakistan, of which 24 are resident. Only six species from the Accipitridae family were
Zahid Bhatti, Fida Muhammad Khan, Muhammad Asif Gondal   +2 more
doaj   +1 more source

The First Record of Cases of Breeding the Greater Spotted Eagle in Old Nests of the Golden Eagle and White-Tailed Eagle in the Altai Kray, Russia

Пернатые хищники и их охрана, 2016
The Greater Spotted Eagle (Aquila clanga) is rarely seen breeding in the nests of the other raptor species. From time to time it breeds in the former nests of medium-size accipitridae like the Black Kite (Milvus migrans), Common Buzzard (Buteo buteo ...
Igor V. Karyakin, Elvira G. Nikolenko
doaj   +1 more source

Non-Invasive Sex Determination of Nestlings and Adult Bonelli’s Eagles Using Morphometrics

Animals, 2023
Biometric analysis allows the sexing of most vertebrates, particularly birds. Birds of prey, and, especially, the Bonelli’s eagle (Aquila fasciata), show reverse sexual dimorphism (i.e., females are usually larger than males).
Irene Estellés-Domingo, Pascual López-López   +1 more
doaj   +1 more source

The former distribution of White‐tailed Eagles in Iberia, the Mediterranean and the Middle East: a case study of the importance of understanding historical distribution in informing current conservation and restoration interventions

Ibis, EarlyView.
The importance of considering historical data in developing conservation and restoration measures for individual species and for wider ecological restoration has been pointed out by recent reviews but often remains neglected in practice. This paper provides a case study illustrating the issue through a review of the former breeding distribution of the ...
Duncan J. Halley
wiley   +1 more source

Courtship display behavior influences tail myology in Centrocercus minimus (Gunnison sage‐grouse)

Journal of Anatomy, EarlyView.
Courtship displays among birds are widespread, particularly those which incorporate raised tail feathers for extended periods of time. The Gunnison sage‐grouse (Centrocercus minimus) is such a species. When we compared the tail muscles of the sage‐grouse to birds which do not engage in erected tail fan postures, both morphology proportional mass ...
Alexander D. Clark, Jessie Atterholt, Samantha J. Clark, Nathan W. Seward   +3 more
wiley   +1 more source

Syrinx anatomy and vocalizations in New World vultures (Aves: Cathartidae): Implications for avian vocal evolution

Journal of Anatomy, EarlyView.
New World vultures are the only avian clade proposed to lack a syrinx and have been described as non‐vocal. Using dissection, diceCT, and histology, we demonstrate that cathartid vultures have novel syringeal features that form a syrinx and vocal characterization reveals that they produce more complex vocalizations than previously reported.
Bradley A. Ibarra, Carmen A. Urban, Lucas J. Legendre, Julia A. Clarke   +3 more
wiley   +1 more source

Vision and Foraging in Structurally Complex Habitats: Common Moorhens (Gallinula chloropus) See the Way Ahead

Ecology and Evolution, Volume 16, Issue 9, September 2026.
This study examines how common moorhens balance foraging and predator detection through their visual field configuration. It finds they have a narrow but vertically elongated binocular field for precise feeding, alongside near‐panoramic monocular vision for wide environmental awareness.
Steven J. Portugal, Eleanor A. Lucas, Simon Potier, Gérard Rocamora, Graham R. Martin   +4 more
wiley   +1 more source