Holes made by the bird in a tree.
Holes made by the woodpecker.
Presa Constitución 1917. San Juan del Río, Querétaro.
Laura Uribe, Grupo Vasconcelos ITSJR.
Nine families of largely arboreal birds make up the order Piciformes, the best-known of them being the Picidae, which includes the woodpeckers and close relatives. The Piciformes contain about 67 living genera with a little over 400 species, of which the Picidae (woodpeckers and relatives) make up about half.