What can 'ring species' teach us about evolution?

Ten thousand years ago, at the end of the last ice age, a species of greenish warblers lived in a forest south of the Tibetan Plateau. As the ice receded, the forest grew to form a ring around the plateau—and so did the ...

Drought in the Horn of Africa delays migrating birds

The catastrophic drought last year in the Horn of Africa affected millions of people but also caused the extremely late arrival into northern Europe of several migratory songbird species, a study from University of Copenhagen ...

Testosterone regulates solo song of tropical birds

(Phys.org)—In male songbirds of the temperate zone, the concentration of sex hormones is rising in spring, which leads to an increase in song activity during the breeding season. In the tropics, there has been little evidence ...

Cuckolded males sing louder

The song of male songbirds is multifaceted and has two main functions: to repel rivals and to attract mates. Females often pay attention to certain features within a song, such as the presence of special syllables, to assess ...

Endangered status considered for Bicknell's thrush

(AP) — The Bicknell's thrush, a rare songbird that breeds atop mountains in the northeastern United States and winters in the Caribbean, is being considered for endangered species status, the U.S. Fish and Wildlife Service ...

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