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The Academy of Natural Sciences - Research - Visual Resources for Ornithology - Slide Sets - Bird Families of the World (Site not responding. Last check: 2007-10-24) |
 | | Rhabdornithidae; Philippine Creepers, a small group of birds from the Philippines that is variously treated as members of the Timalidae (babblers) or Certhiadae (tree-creepers). |
 | | Turnagridae; a group consisting only of the extinct Piopio, a bird whose familial affinities are unclear but which is often treated as a member of the family Ptilonorhynchidae (Bowerbirds). |
 | | Pityriasidae; a monotypic family consisting of the Bornean Bristlehead, an enigmatic bird from Borneo that has been considered a member of Laniidae (the shrikes), Sturnidae (starlings and mynas) as well as Artamidae (the woodswallows). |
| www.acnatsci.org /research/vireo/BirdFamilies.html (156 words) |