Almost two weeks ago (February 27, I believe) I heard my first robins and then a few days later I spotted the first one. That same week, I heard the red wing blackbirds as well and my first spring bulbs poked through. The first to poke through were a few tulips with reddish stems. Then my snowdrops poked through. When we got some snow the next day, they disappeared but today I see that they are back even in the cold weather we are experiencing.
We have had a really mild and warm winter with little snow (other than the time we were gone in December) so I guess it is not surprising things are starting a bit earlier. I just hope another cold spell and some snow (they are talking 2-4 inches on Monday) doesn't do damage to plants that have poke through a bit too early.