Why sapsuckers often choose to make their nests in living, not dead, trees — and aspens in particular
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Eastern Golden Eagles and wind power


How researchers in a race with wind-power developers are shedding light on the habits, pathways, and winter haunts of a little-understood eastern migrant — the Golden Eagle Read More

Sea change for puffins


Why researchers who’ve peered into cliffside nests high above the Pacific are sounding the alarm about the charismatic Tufted Puffin Read More

Marvel of the high arctic


Working in the low light of the midnight sun, a scientist at the top of the world reveals why the Red Knot is a marvel of biological engineering Read More