Woodpeckers in the Garden

We see the woodpeckers from time to time and know that they have arrived by their characteristic knocking. But I have never seen a pair travelling together. Once again Wikipedia came to the rescue and I quote from their site The Crimson-crested Woodpecker (Campephilus melanoleucos) is a very large woodpecker which is a resident breeding bird from Panama south to northern border regions of Argentina, and on Trinidad.
The habitat of this species is forests and more open woodland. Two white eggs are laid in a nest hole in a dead tree and incubated by both sexes.
The Crimson-crested Woodpecker is 36 cm long and weighs 250g. It resembles the Pileated Woodpecker of North America, but within its range the confusion species is the Lineated Woodpecker.
Adults are mainly black above, with a red crest and white lines down the sides of the black throat and shoulders, which meet in a V on the back. The underparts are white, heavily barred with black. They show white on the wings in flight.
Adult males have a red line from the bill to the throat and red on the front of the crown. In adult females, these plumage features are black.