One of the first signs that spring is not far off arrives in mid-February, when the male northern cardinal sings his cheerful ...

So it's time to hear the first whistled "what-cheer, cheer, cheer" songs of the northern cardinals, which is a sure sign of spring as they sing in response to the lengthening days. Yes, one season ...

Thump. Thud. Something was hitting our window! It was a bright red cardinal flying at his reflected image in the glass - which he perceived to be an intruder in his territory. The bird kept it up for ...