Woodpeckers of the World: November 2014

Tuesday, 18 November 2014

Picid in Focus: Hairy Woodpecker

Male Hairy Woodpecker Picoides villosus. Photo taken near Portal, Arizona, USA, in July 2014, by Gerard Gorman.

Tuesday, 11 November 2014

Endemic Woodpeckers

An endemic species is one that is restricted in range to a particular habitat or region. In birding parlance the term often refers to a species being found only in one country. There are numerous endemic woodpeckers around the globe, with isolated islands often having endemic species. Here is a male Black-necked Woodpecker Colaptes atricollis race peruvianus, which is endemic to parts of Andean Peru. Taken in the Maranon Valley, Peru, November 2012, Gerard Gorman.

Tuesday, 4 November 2014

Picid in Focus: Arizona Woodpecker

Arizona Woodpecker Picoides arizonae. This is a male, females lack the red hind-crown patch. Note that despite the name, this species also occurs in northern Mexico. Photo taken near Portal, Arizona, USA in July 2014, by Gerard Gorman.

Background

Woodpeckers, the Picidae, are Piciformes, an order that includes some of the oldest avian lineages. The Piciformes probably originated about 60 million years ago in the Tertiary period and became distinct from their closest relatives some 50 million years ago. Depending upon which taxonomy is followed, and the fact that the status of some species is unclear, around 240-260 woodpecker species probably exist globally. The Picidae includes three subfamilies: Jynginae (wrynecks), Picumninae (piculets) and the Picinae, the “true woodpeckers”. In terms of size, behaviour, distribution and the habitats they use, the Picinae are a fairly diverse group of birds with six distinct tribes. They are widespread and found from sea-level to high-altitudes but absent from the Arctic, Antarctica, Australia, New Zealand, Papua New Guinea, Madagascar and some other islands. Worldwide woodpeckers are usually, but not exclusively, associated with trees.