One of the joys of living close to nature is identifying the sounds of birds. If you know their song or their voice, you become aware of the seasonal comings and goings of different birds in your area.
Even if you don't know which exact bird, surely you can tell baby birds this time of year by their "cheep, tweep, Mom, I'm hungry" sound from high in the treetops. Look up, and you might spot their nest. Be very still, and you might be lucky enough to see Mom or Dad swoop in for a feeding. (Trust me, it's a thrill.)
I blogged once about the joy of hearing the sound of a Swainson's Thrush (my overall favorite bird song.) http://lindabenson.blogspot.com/2010/06/song-of-swainsons-thrush.html
I identified a new bird last year, which has a different song - not as pretty, but I waited for the Yellow-Breasted Chat to show up again this year, and like clock-work, it arrived about May 2. I blogged about that chatterbox right here: http://lindabenson.blogspot.com/2013/06/the-chatterbox.html
And in the last couple of days, I spotted a fleeting swoosh of blue flying between trees. Yes, we have Western Bluebirds this year, and believe it or not, this is the first time I've actually seen this bird. They appear to be nesting here, and I can hardly wait to watch their babies arrive.
Spring brings lots of nature's delights, and I hope you take the time to watch and listen for them. You might be surprised what you'll learn!