New Bird Species Discovered on Indonesian Island
March 2008. Ornithologists have announced the discovery of a new species of bird from the Togian Islands of Indonesia – Zosterops somadikartai, or Togian white-eye, in the March edition of The Wilson Journal of Ornithology.
The announcement of a new bird comes with a twist: It’s a white-eye, but its eye isn’t white. However, what the new bird lacks in literal qualities it makes up for as one of the surprises that nature still has tucked away in little-explored corners of the world. Its eye isn’t ringed in a band of white feathers like its cousins who flock in other remote tropical islands of Indonesia. Yet it does have many features in common with the black-crowned white-eye Zosterops atrifrons of Sulawesi, which is clearly its closest relative, said Michigan State University’s Pamela Rasmussen, an internationally known ornithologist specializing in Asian birds.
The announcement of a new bird comes with a twist: It’s a white-eye, but its eye isn’t white. However, what the new bird lacks in literal qualities it makes up for as one of the surprises that nature still has tucked away in little-explored corners of the world. Its eye isn’t ringed in a band of white feathers like its cousins who flock in other remote tropical islands of Indonesia. Yet it does have many features in common with the black-crowned white-eye Zosterops atrifrons of Sulawesi, which is clearly its closest relative, said Michigan State University’s Pamela Rasmussen, an internationally known ornithologist specializing in Asian birds.
First Sightings
The Togian white-eye first was spotted by Mochaamad Indrawan, an Indonesian field biologist at the Depok Campus of the University of Indonesia, and Sunarto (some Indonesians use a single name), who is now working on a doctorate at Virginia Tech University in the USA, 12 years ago during their first trip to the Togian Islands.
Type Specimen
Those first sightings were fleeting, but Indrawan and Sunarto returned and made several more observations of these active little green birds, and obtained the type specimen upon which the species’ description is now founded. The type specimen was then sent on loan to Rasmussen at the Michigan State University Museum, so she could make detailed comparisons between it and related species at museums such as Britain’s Natural History Museum, the American Museum in New York and the Smithsonian Institution.
New Species is Endangered
The new bird is believed to be endangered. The white-eye has been seen only near the coasts of three small islands of the Togian Islands in central Sulawesi. Unlike most white-eye species, it is evidently quite uncommon even in its very limited range. Considering its limited numbers and distribution, it falls into the World Conservation Union category of endangered. This finding also establishes the Togian Islands as an endemic bird area.
The species is named for Soekarja Somadikarta, Indonesia’s leading taxonomist and mentor to Indrawan. Somadikarta was recently appointed honorary president for International Ornithological Congress XXV.
Difference in Song
Rasmussen noted that the Togian white-eye is distinctive not only in appearance, but its lilting song, which Indrawan recorded and Rasmussen committed to sonogram, sounds higher pitched and is less varied in pitch than its close relatives.
Pamela Rasmussen
Rasmussen is assistant curator of mammalogy and ornithology at the MSU Museum and an assistant professor of zoology. She recently authored a field guide Birds of South Asia: The Ripley Guide. On the way there, her work on uncovering the ornithological frauds of British Col. Richard Meinertzhagen has received international attention, detailed in Nature, the May 2006 The New Yorker, and The BestAmerican Science and Nature Writing 2007.
Courtesy of Michigan State University.
