Watch birds for long and you’ll come to understand the power of the perch. It might be a feeder holder, as this goldfinch models, or the edge of the bird bath. Hummingbirds position themselves on the topmost wire of the tomato cage. Cardinals alight on azalea branches. Doves pace on the deck railing.

Many birds like to perch on the dead limbs that despite our best efforts at pruning still protrude over the backyard. There are only two large limbs, and I think they’re unsightly. But they are full of leafless branches on which birds can perch and chatter and clean their beaks. I’ve come to appreciate the utility of these dead limbs and wouldn’t want to remove them — even though they hang like swords of Damocles over the lawn.

Birds use perches to claim territory and assert power — the higher the better, of course. And in this they are not unlike humans.

But perches are also where birds sing and roost and court their mates. Perches are resting places, where birds watch the world go by. They are, in a word, home.