Many years ago my son brought this list home from his science teacher. Every few years we take it out and keep track of the changes spring brings. It is fun to look back at the differences each year brings. In 2012 the ponds were ice free by March 9, here it is March 28 and they are no where near thawing yet. Also that year we seen our first Robin on March 15.
I am hoping I can start filling in my spring 2014 list soon.