Every spring robins come bob, bob, bobbin' along to Gothic, the former Colorado mining community that's now the site of the Rocky Mountain Biological Laboratory. This year they didn't even wait for spring—the first robin showed up on 13 March, more than a week before the spring equinox.
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1 August 2004
Climate Warming Shakes up Species
MARI N. JENSEN
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BioScience
Vol. 54 • No. 8
August 2004
Vol. 54 • No. 8
August 2004