Woodpeckers of the World: Picid in Focus: Tullberg's Woodpecker

Monday, 9 July 2012

Picid in Focus: Tullberg's Woodpecker

Female Tullberg's Woodpecker Campethera tullbergi. This canopy forager is often inconspicuous as it works snags and probes in moss, lichen and leaf-clusters for prey. Three races: nominate tullbergi in south-east Nigeria, western Cameroon and Bioko Island in Gulf of Guinea, taeniolaema (as here) from eastern DR Congo to Rwanda, south-western Uganda, Burundi, western Tanzania and western Kenya, and hausburgi in the Kenyan highlands east of Rift Valley, eastern Uganda and northernmost Tanzania. Photo by Gerard Gorman, Uganda, February 2012.

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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.