Results 141 to 150 of about 15,406 (254)

Nocturnal passerine migration without tailwind assistance

, 2011
Nocturnal passerine migrants could substantially reduce the amount of energy spent per distance covered if they fly with tailwind assistance and thus achieve ground speeds that exceed their airspeeds (the birds' speed in relation to the surrounding air).
Nilsson, Cecilia, Alerstam, Thomas, Karlsson, Håkan, Bäckman, Johan   +3 more
core  

Linking eBird data with high spatiotemporal remote sensing products to estimate occupancy of bird populations across the island of Ireland

Ibis, Volume 168, Issue 4, Page 1464-1482, October 2026.
The vast increase in biodiversity data generated through citizen science initiatives, alongside a growing suite of remote sensing products and advanced modelling tools, has opened new avenues for rapidly, accurately and efficiently monitoring species trends to inform conservation, management and policy.
Ramiro D. Crego, Solène Gobet, John Kennedy, Brian Burke, Andrew Lynch, Dick Coombes, Sinéad Cummins, Lesley Lewis   +7 more
wiley   +1 more source

Fine‐scale genetic structure in co‐operatively breeding Palmchats (Dulus dominicus) suggests mixed kinship in compound nests

Ibis, Volume 168, Issue 4, Page 1378-1390, October 2026.
Fine‐scale genetic structure in animal populations can create opportunities for both kin‐directed co‐operation and kin competition. Knowledge of kinship is therefore key to understanding the selective pressures shaping sociality as well as the effects of social behaviour on local genetic structure.
Joshua B. LaPergola, Gavin M. Leighton, Christina Riehl   +2 more
wiley   +1 more source

Connectivity between breeding sites, wintering areas, and migration routes in Common Terns (Sterna hirundo) breeding in the Western Palaearctic

Ibis, Volume 168, Issue 4, Page 1230-1240, October 2026.
Detailed knowledge about bird migration patterns can enhance our understanding of the evolution of migration and temporal changes in space use throughout the annual cycle. Additionally, as many migratory bird species are experiencing population declines, understanding the connectivity between their spatial distributions during breeding, migration and ...
Yosef Kiat, Eli Haviv, Yoav Perlman, Inbal Schekler   +3 more
wiley   +1 more source

Dietary flexibility and high arthropod availability prevent food limitation in a mountain population of breeding Northern Wheatears

Ibis, Volume 168, Issue 4, Page 1629-1648, October 2026.
Mountain ecosystems are under strong environmental pressure and are considered highly vulnerable to climate change, which is likely to lead to forest expansion and loss of open alpine grasslands, threatening many specialized species. However, for most alpine birds, even basic ecological knowledge, such as their diet, remains limited, restricting our ...
Camille Mermillon, Dan Chamberlain, Christian Miquel, David‐Emmanuel Coffie, Keyvan Dumas, Domenico Rosselli, Glenn Yannic   +6 more
wiley   +1 more source

Diversification, geographic expansion and trait evolution among passerine birds

, 2017
The exceptional diversity of life among regions and taxonomic clades on Earth has fascinatedpeople since the days of Humboldt, Wallace and Darwin. Through meticulous study,scientists attempt to elucidate the factors responsible for generating this ...
Marki, Petter Zahl
core   +1 more source

Canopy functional composition as an indicator of bird traits, taxonomy, and vulnerability in tropical Peruvian forests. [PDF]

Nat Commun
Olah G, Evans MJ, Asner GP.
europepmc   +1 more source

Predation on vertebrates by Neotropical passerine birds

, 2005
We investigated if passerine birds act as important predators of small vertebrates within the Neotropics. We surveyed published studies on bird diets, and information on labels of museum specimens, compiling data on the contents of 5,221 stomachs ...
Lopes, Leonardo Esteves, Marini, Miguel Ângelo, Fernandes, Alexandre Mendes   +2 more
core  

Natural history on canvas: Brueghel knew about bird-eating noctule bats. [PDF]

Proc Natl Acad Sci U S A
Romero-Vidal P, Sánchez-Navarro S, Tena E, Clavero M.   +3 more
europepmc   +1 more source

Seasonal Differences in Community-level Mobbing Responses of Passerines Toward a Diurnal Owl in Taiwan. [PDF]

Zool Stud
Chen TC, Tsai JS.
europepmc   +1 more source