Yesterday afternoon, which turned out to be a not bad day with sunshine and moderate temps, I heard the distinctive spring mating/premating call of a Chickadee - "fee bee ee" or "Hi, sweetie".
...the Cardinal male has been singing as well, the Blue Jays and Nuthatches are now appearing in pairs at the feeders...hmmmm... maybe the birds know something those silly rodents don't?
Joann