Migratory divides can be found in birds whose migration routes run across geographical barriers. Hybrids of parental types that employ alternative routes a

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A collaborative project with wildlife rescue centres across Europe to understand how heatwaves and extreme weather affect swift nestlings and fledglings, using large-scale rescue and admission data.

Renewable wind energy can aid decarbonization efforts; however, the impacts of wind turbines on migrating birds remain unclear. The authors study the potential risks of wind energy installations on mi...

Using nationwide data from over 92,000 individuals, we reveal large-scale spatio-temporal variation in age-dependent survival and age at first breeding in a long-lived species. By comparing alternati...

Seasonal changes, more than grazing exclusions, shape bird community composition in the Sahel region of Burkina Faso. However, grazing exclusions enhanced habitat heterogeneity, supporting regional b...

In an experimental brood-size manipulation in Alpine swifts, smaller nestlings were selectively lost during growth, eliminating treatment differences in adult size, yet individuals from enlarged broo...

Winter at high elevations challenges resident species such as the White-winged Snowfinch. Circannual-regulated fat accumulation, along with flexible and sex-specific movement strategies, likely play ...

As environmental conditions change, the ability of species to adjust their phenology is important for fitness. Advantageous adjustments are often specific to location, species, and annual cycle phase...

The Swiss Ornithological Institute in Sempach is a non-profit foundation for ornithology and bird conservation. It monitors native bird life, researches their habits, and campaigns for endangered bird...