Results 51 to 60 of about 1,086 (167)
Balancing moult, migration, and breeding in a long‐lived partially migrant raptor
Moult, breeding, and migration are the three major life‐history events in the annual cycle of birds. All are energetically demanding processes that rarely overlap. In large raptors such as the Egyptian vulture Neophron percnopterus, completing a full moult may take more than one year, requiring birds to balance this process with other life‐cycle events.
Iñigo Zuberogoitia +19 more
wiley +1 more source
Población, distribución, y reproducción del Halcón peregrino (Falco peregrinus) en gipuzkoa (2003-2004) = Population, distribution and reproduction of peregrine hawk (Falco peregrinus) in Gipuzkoa (2003-2004). [PDF]
Se ha estudiado la población de Halcón peregrino (Falco peregrinus) en el Territorio Histórico de Gipuzkoa (País Vasco) durante las temporadas de reproducción del 2003 y 2004. En total se han registrado 28 territorios ocupados por la especie en el 2003 y,
F. Álvarez, M. Olano, T. Aierbe, J. Vazquez, P. Izkeaga, J. Ugarte
doaj
Boom‐Bust Dynamics Drive Community‐Wide Dietary Structuring in Desert‐Dwelling Raptors
We investigated how boom‐bust productivity dynamics affected dietary structuring within raptor communities of an arid bioregion. We found that higher productivity was associated with high dietary overlap, lower niche breadth and greater foraging on small mammals; however, raptors that were nomadic exhibited greater specialisation regardless of ...
Rhys J. Cairncross +1 more
wiley +1 more source
We analyzed a combination of GPS tracking data and nest‐monitoring data from an urban population of an opportunistic rodent specialist, the Common Buzzard (Buteo buteo), to analyze how raptors utilize urban landscapes. Buzzards occupied even extreme habitats such as residential areas for foraging and breeding and benefit from lucrative foraging ...
Marc Engler, Oliver Krone
wiley +1 more source
Duck Hawk (Falco peregrinus anatum)
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire +2 more sources
American kestrel population trends and vital rates at the continental scale
Abstract The American kestrel (Falco sparverius, hereafter referred to as kestrel) has declined across much of its North American range since at least the mid‐1960s. Kestrel population dynamics have been explored through a multitude of local studies and two broad reviews of available data. Across large geographic extents, however, the demographic cause(
Paige E. Howell +17 more
wiley +1 more source
Falco peregrinus subsp. cassini Sharpe 1873
Published as part of Pagano, Luis G. & Salvador, Sergio A., 2017, Datos De Pesos De Aves Argentinas. Parte 4, pp.
Pagano, Luis G., Salvador, Sergio A.
openaire +2 more sources
Falco peregrinus subsp. cassini Sharpe 1873
Published as part of Coria, Oscar R., Quiroga, Oscar B., Navarro, José L., Heredia, Javier, Torres, Ricardo & Lima, Javier, 2021, Lista actualizada de las aves de Santiago del Estero, Argentina, pp. 42-143 in Acta Zoológica Lilloana 65 (1) on page 86, DOI: 10.30550/j.azl/2021.65.1/2021-03-16, http://zenodo.org/record ...
Coria, Oscar R. +5 more
openaire +2 more sources
We investigated low American oystercatcher (Haematopus palliatus) productivity in the Virginia barrier islands, which historically supported high oystercatcher reproductive success. We found that chick survival was lower than nest survival, and that management may need to adapt to address evolving threats from coastal flooding and a multi‐guild ...
Mikayla N. Call +6 more
wiley +1 more source
The Peregrine Falcon ( Falco peregrinus) and pesticides
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire +2 more sources

