November 21, 2011 6:42 AM

How has climate change impacted California?

The songbirds at the feeder outside your window are not the same as they used to be. The goldfinch, the grosbeak and even the ever-present sparrow are all a little bit bigger. The reason is climate change, according to a new study, which found that 70 bird species, all common to Central California, have evolved a longer wingspan and greater body mass over the past 40 years.

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