Last year I posted photos of the Blue-eyed Grass which were the first blossoms, appearing in the second week of April. You can read that blog entry here.
This year, for the first time, I noticed some Crocus which appeared even before Spring. These photos were taken on the last day of Winter, 2011-2012, the Winter that never was.
The first two photos were made with a Canon EOS 5D and EF 300mm f/4L IS USM lens. The third photo is a real world example of the reversing lens technique I described in my post of March 17th, using the EF 50mm f/1.4 USM lens.