Avian researchers in western Pennsylvania are celebrating the recent discovery of a rose-breasted grosbeak with male and female traits, a rare instance they likened to "seeing a unicorn." The ...
In a forest of Colombia, a multi-colored bird waited its turn to approach the bird feeder. When it finally came close, the onlooking scientists were stunned. On its left side, the green honeycreeper ...
Source: fir0002, via Wikimedia Commons. Traditionally, birdsong has been viewed as a male trait, and this bias has dominated research on the behavior. “For a long time, scientists thought that female ...
A green honeycreeper spotted on a farm in Colombia exhibits a rare biological phenomenon known as bilateral gynandromorphism. By Emily Anthes Colombia is a bird watcher’s paradise. Its stunningly ...
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