Hummingbirds in Winter?

By Derek Stoner, Family Programs Coordinator The 30-degree weather this past weekend did not faze the young female Rufous Hummingbird visiting a backyard in Avondale, PA.  Weighing in at 3 grams and possessing a stove-hot metabolism with a heart beat of 600 beats per minute, this tiny bird is thriving on the nectar of late-blooming …

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