First day of spring in Central Park. Sparrows, snowdrops, and daffodils announce the opening act of a season that will paint the park with glorious color. For now, the remnants of winter linger on, muted shades of umber and gray, silky tones, competing with the bursts of white and yellow. Ducks paddle through the lakes in widening ripples. A hike of a few temperature degrees might be nice.