monomorphic. Woodpecker finches mainly use moss, lichens, and grass as building materials for their nests. During the 2 week incubation period when females are sitting on the eggs, males linger nearby, often feeding the females. Female woodpecker finches typically lay around 2-3 eggs. Both males and females participate in the feeding of the chicks from the day they hatch until well after they have become independent. Woodpecker finch chicks will fledge around 2 weeks after hatching. References External links woodpecker finch Endemic birds of the Galápagos Islands Tool-using animals woodpecker finch woodpecker finch woodpecker finch Taxobox binomials not recognized by IUCN