Evolutionary Limb

clouds

As she always does, Aki squeals and fidgets in the car as we approach the glacier trailhead. She flies out of the car when I open the door even though no dogs are near to welcome her. She must always expect wonders at the start of every hike.

We drove through rain, snow, sun and more rain during the 12-mile drive from Chicken Ridge so I birdonly expect confusion from the weather. I hope for a chance to watch mountain goats forage on the rock face above Nugget Falls. I didn’t expect to spot a female white-wing crossbill on some glacier-scrubbed rocks near the trail. The little yellow/gray bird’s bill strands it way out on an evolutionary limb. Overlapping like a broken pair of scissors, the bird’s bill is dynamite for prying seeds from spruce cones, which is why it thrives in the rainforest. The Audubon folks write that the white-winged crossbill can feed on pine seeds and even fruit in a pinch but it’s slim beak evolved to hammer spruce. “Chow down, little bird,” I tell it, “and pray that the spruce forest doesn’t shrink like our glacier.”

goat

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