Anna's hummingbirds' northward expansion
This is a British Columbia news story, published by Only Good News Daily, that relates primarily to Anna news.
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•Science
Science
The beaks of Anna’s hummingbirds have grown longer and larger over just a few generations

80% Informative
Anna ’s hummingbirds ( Calypte anna) have grown longer and larger over just a few generations thanks to the proliferation of hummingbird feeders after World War II .
The birds have expanded their range northward, from Southern California to British Columbia .
Researchers saw changes over the course of just about ten generations.
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