Birds
These hummingbirds’ bills evolved for fighting
These hummingbirds’ bills evolved for fighting Male green hermit hummingbirds have evolved straighter, sharper, and structurally stronger bills for fighting, which has shaped their species’ evolution. Their bills are designed to be effective weapons, allowing them to defend their perches and compete for mates in a “singles bar” setting where they gather to find partners. […]
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Mountain chickadee chatter: Scientists are decoding the songbird’s complex calls
Mountain chickadee chatter: Scientists are decoding the songbird’s complex calls Scientists are studying the complex calls of mountain chickadees to understand their communication system, which is unusual compared to other songbird species. The “chick-a-dee” call contains six elements that can be combined in hundreds of unique combinations to convey different information, similar to human grammar, […]
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Windows are the No. 1 human threat to birds – an ecologist shares some simple steps to reduce collisions
Windows are the No. 1 human threat to birds – an ecologist shares some simple steps to reduce collisions Every year, over 1 billion birds die from collisions with glass windows in the United States alone, making window collisions the top human cause of bird deaths. Most frequently, glass acts as a mirror, reflecting clear […]
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