Results 51 to 60 of about 1,171,297 (163)

Urban Green Spaces Set the Stage for Rare Interspecific Allopreening Between Crested Caracara (Caracara plancus) and Black Vultures (Coragyps atratus)

open access: yesEcology and Evolution, Volume 16, Issue 1, January 2026.
Observations in San Antonio, Texas documented rare interspecific allopreening between crested caracaras and black vultures at Phil Hardberger Park. This represents the first recorded instance of such behavior in an urban green space, expanding the known ecological and geographic scope of interspecies social interactions.
Lori Boies   +2 more
wiley   +1 more source

Nuevas preguntas sobre una antigua federación aymara. Algunos aportes en torno a la Federación Qharaqhara (Charcas, siglo XVI) [PDF]

open access: yes, 2012
La Federación Qharaqhara constituyó uno de los mayores colectivos políticos del sur andino en el siglo XVI. Este trabajo ofrece una relectura sobre la existencia prehispánica y temprano colonial de algunas entidades que habrían integrado esa federación ...
Zagalsky, Paula Cecilia
core  

Cuatro Vientos: A Reconsideration of Seven Prehistoric Sites in the Lower Rio Grande Plains of South Texas [PDF]

open access: yes, 2010
With this report, Texas Department of Transportation (TxDOT) begins a reconsideration of approaches to the evaluation and treatment of those areas where surface lithic scatters are the main constituent of the archeological record. The reconsideration was
Caran, S. Christopher   +3 more
core   +3 more sources

Archeological Data Recovery Excavations along Becerra Creek (41WB556), Webb County, Texas [PDF]

open access: yes, 2002
From June through August 2000, The Center for Archaeological Research of The University of Texas at San Antonio conducted archeological data recovery for prehistoric site 41WB556, under contract with Texas Department of Transportation. The investigations
Mahoney, Richard B.   +2 more
core   +2 more sources

Past research and future directions in understanding how birds use their sense of smell

open access: yesIbis, Volume 167, Issue 4, Page 853-881, October 2025.
Our understanding of the functional importance of olfaction to birds has improved over the past 60 years, largely as the result of experimental studies testing how birds use their sense of smell in different contexts. As it is impossible to measure directly which odours birds can detect, we rely on measuring behavioural responses to scent cues or ...
Darcy Creece   +2 more
wiley   +1 more source

Avian influenza overview June–September 2025

open access: yesEFSA Journal, Volume 23, Issue 10, October 2025.
Abstract Between 7 June and 5 September 2025, 183 highly pathogenic avian influenza (HPAI) A(H5) virus detections were reported in domestic (27) and wild (156) birds across 15 countries in Europe. Although HPAI A(H5N1) virus detections were predominant in western and southwestern Europe, they also occurred on the northernmost coast of Norway. More than
European Food Safety Authority   +16 more
wiley   +1 more source

Assessment of a Social Media‐Based Method for Determining Raptor Diet

open access: yesEcology and Evolution, Volume 15, Issue 6, June 2025.
This study mined social media as a citizen science method to reduce the time burden and biases associated with recording accurate diet information for predators. In total, 1985 prey observations were recorded of two Australian coastal raptors and were used to produce diet profiles that were compared by region, social media platform, and against other ...
Leo Biggs   +7 more
wiley   +1 more source

Heterospecific sociality of birds on beaches from southeastern Brazil

open access: yesZoologia (Curitiba), 2009
Studies on the sociality of heterospecific assemblages of birds have promoted a greater understanding of the types of interactions and survivorship between coexisting species.
César Cestari
doaj  

Double brooding and offspring desertion in the barn owl (Tyto alba) [PDF]

open access: yes, 2015
Many bird species produce two annual broods during a single breeding season. However, not all individuals reproduce twice in the same year suggesting that double brooding is condition-dependent.
Béziers, P., Roulin, A.
core   +1 more source

Spatial responses of black vultures to resource pulses during white‐tailed deer hunting seasons

open access: yesWildlife Society Bulletin, Volume 49, Issue 2, June 2025.
Pulsed resources can dramatically influence spatial ecology of wildlife. We investigated black vulture responses to resource pulses from white‐tailed deer hunting season. We found that black vulture home range size and overlap decreased with harvest intensity. Abstract Pulsed resources can dramatically influence spatial ecology of wildlife.
Alexandra M. Dudley   +5 more
wiley   +1 more source

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