#Birds4

22 Dec 2025

How cowbirds make a watery song

Researchers explain how brown-headed cowbirds make a watery timbre by switching between the two sides of the syrinx and by controlled breathing. Starlings raised with cowbirds learned to copy the sounds.

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Photo by 冬城, Unsplash

5 Dec 2025

30-year snapshot shows many Pacific Northwest birds resilient

A resurvey of mountain sites in the Pacific Northwest compared bird communities from 30 years ago with today. Researchers found many species stable or more abundant at higher elevations despite warmer temperatures.

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25 Nov 2025

Green Hermit Hummingbird Bills for Fighting and Feeding

New research shows male green hermit hummingbird bills are shaped for fighting and for feeding. Scientists used 3D models and scans and found male bills are straighter and sharper than female bills.

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11 Oct 2025

World Migratory Bird Day 2025: Protecting Birds in Caribbean Cities

World Migratory Bird Day 2025 fell on October 11 with the theme “Shared Spaces: Creating Bird-Friendly Cities and Communities.” The story describes bird migrations, threats from development and climate change, and ways communities can help.

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