Contact: Scott Smith
Wildlife Conservation Society
Caption: With earlier springs, Arctic Alaska shorebirds like this red-necked phalarope feeding in a small Arctic pond, need to adjust their migratory calendars to breed earlier and earlier. Such adjustments for these international migrants have unclear effects on their capacity to balance other seasonal demands in other parts of the world.
Credit: Steve Zack
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Related news release: Earlier snowmelt prompting earlier breeding of Arctic birds