I listen, as I imagine he does, for a response.
Maybe it's too early in the spring for there to be an answer.
Maybe she's still in her hibernating cocoon and isn't aware that he's waiting for her.
Every year it's the same thing.
He sends his song along the cooling night air to her long before she's even aware.
One day in the not too distant future she will answer him
Such a simple thing will make me smile and be happy for my little frogs.
They have once again found each other after a long winter.