Results 81 to 90 of about 9,530 (211)

Balancing moult, migration, and breeding in a long‐lived partially migrant raptor

open access: yesJournal of Avian Biology, Volume 2026, Issue 2, March 2026.
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

eBird Data Highlight Shifts in Wetland Resources Structuring Waterfowl and Shorebird Abundance

open access: yesEcology and Evolution, Volume 16, Issue 2, February 2026.
Wetland losses in the American West, driven by accelerated drying, overlapped multiple shorebird and waterfowl life histories. Trends were indicators of declining availability and increased uncertainty in waterbird habitat networks. Losses were pervasive in semi‐permanent wetlands, with 19%–48% reductions over the past two decades.
J. Patrick Donnelly   +6 more
wiley   +1 more source

Comparative analysis of the plasma metabolome of migrating passerines: novel insights into stopover metabolism

open access: yesJournal of Avian Biology
During long‐distance migration, many birds experience periods of either prolonged fasting (during endurance flights) or extensive feeding (during stopovers).
Adi Domer   +7 more
doaj   +1 more source

Cliff top habitats provide important alternative feeding resources for wading birds of conservation importance wintering on non-estuarine coasts [PDF]

open access: yes, 2014
Rocky shores and beaches are important over-wintering areas for non-estuarine waders but have rarely been studied. We examined cliff top habitat use by 6 species of wader over 75 km of coast to assess their potential value as alternative feeding sites to
Furnell, Julie, Hull, Susan L.
core   +1 more source

Migratory Eurasian blackbirds have longer telomere length but similar mitochondrial density than resident conspecifics

open access: yesJournal of Avian Biology
Telomeres are regarded as key markers of cellular ageing and physiological state. Oxidative stress, which can accelerate telomere shortening, is thought to increase during energetically demanding processes such as bird migration.
Pablo Salmón   +5 more
doaj   +1 more source

Automated telemetry reveals migratory movements and stopover timing of an endangered saltmarsh passerine

open access: yesAvian Conservation and Ecology
Historically, the fates of individual passerines during migration have been informed primarily by scarce data on band recaptures and resighting. This constraint is particularly problematic for imperiled passerines because information on the timing and ...
Bri Benvenuti   +6 more
doaj   +1 more source

Migration routes and important stopover sites of endangered Oriental white storks (Ciconia boyciana), as revealed by satellite tracking [PDF]

open access: yes, 2004
From 1998 through 2000, we tracked the autumnal migrations of 13 oriental white storks (Ciconia boyciana) by satellite in order to identify their important stopover sites.
Higuchi,Hiroyoshi   +2 more
core   +1 more source

A generalised abundance index for seasonal invertebrates [PDF]

open access: yes, 2016
At a time of climate change and major loss of biodiversity, it is important to have efficient tools for monitoring populations. In this context, animal abundance indices play an important role.
Brereton, Tom   +4 more
core   +4 more sources

Food Availability, Foraging Behavior, and Diet of Autumn Migrant Landbirds in the Boise Foothills of Southwestern Idaho [PDF]

open access: yes, 2012
Food availability and acquisition are critical components of a stopover site\u27s suitability, but we know relatively little about how changes in food availability affect the stopover ecology of migrating landbirds.
Carlisle, Jay D.   +3 more
core   +1 more source

Who bullies whom at a garden feeder? Interspecific agonistic interactions of small passerines during a cold winter [PDF]

open access: yes, 2015
Interspecific agonistic interactions are important selective factors for maintaining ecological niches of different species, but their outcome is difficult to predict a priori.
A Hinde   +28 more
core   +2 more sources

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