The year 2020 will be remembered for a lot of reasons, but for birders across the country, one of them will actually be good: the biggest irruption of northern finches in recent history. This year has seen huge movements of these birds southward, and many have reached astonishing places far from where you’d expect to find them. Finch researchers are calling this year a “superflight,” where every species of boreal finch is irrupting, or moving southward in search of food. A perfect storm of feast and famine appear to be driving this banner finch year, affecting Common and Hoary Redpolls, Evening Grosbeaks, Pine Grosbeaks, Pine Siskins, Red and White-winged Crossbills, and Purple Finches. Other irruptive passerines, like Blue Jays, Bohemian Waxwings, and Red-breasted Nuthatches, are also on the move. "There's not enough food to support them, so they’re just spilling out of the boreal forest.” says Matt Young, ornithologist and founder of the Finch Research...