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- Newsgroups: rec.birds
- Path: sparky!uunet!cs.utexas.edu!torn!utzoo!tony
- From: tony@zoo.toronto.edu (Anthony L. Lang)
- Subject: Re: Toxic Bird?
- Message-ID: <C1F5Kp.H5I@zoo.toronto.edu>
- Date: Mon, 25 Jan 1993 16:53:12 GMT
- Organization: U of Toronto Zoology
- Lines: 38
-
- In article: <1jvkhaINN6ja@usenet.INS.CWRU.Edu>
- br105@cleveland.Freenet.Edu (Jeffrey A. Del Col) writes:
-
- >In the well known ornithology journal THE WEEKLY READER (My son's
- >in the third grade) I found an article about a toxic bird, the
- >Hooded Pitohui. This is a New Guinea sp. found to have toxic
- >feathers and skin. Can anyone provide more information about
- >this? The article mentions a John Dumbacher as the scientist who
- >discovered the bird's toxicity when he licked some cuts on his
- >hands after handling a pitohui. Has he published a report of this
- >anywhere?
-
- Dumbacher, J.P., B.M. Beehler, T.F. Spande, H.M. Garaffo and J.W.
- Daly, 1992. Homobatrachotoxin in the genus Pitohui: Chemical
- Defense in Birds? Science 258: 799-801.
-
- This is the original paper. It also says that native New Guineans
- already knew of the genus' toxic properties and call it "trash
- bird". The scientists found the toxin (an alkaloid) in the
- following species (in decreasing order of toxicity: HOODED PITOHUI
- (Pitohui dichrous), VARIABLE PITOHUI (P. kirhocephalus), RUSTY
- PITOHUI (P. ferrrugineus). Concentrations of the toxin were
- highest in skin and feathers. They speculated that this property
- evolved for chemical defense. Like other toxic species of animals,
- these species have bright, contrasting colours.
-
- >Does anyone know of any other species of bird with such
- >properties?
-
- There are no other toxic birds. Homobatrachotoxin is only known
- from poison dart frogs (Phyllobates spp.).
- I wonder if the bird was named for the sound humans make when
- they spit it out?
- --
-
- Anthony Lang
- Dept. of Zoology,
- University of Toronto
-