|Hooded Pitohui from Smithsonian|
The man who first discovered the toxicity of these birds actually did so because he got scratched and bit by a specimen, and then put his finger in his mouth.... and then his tongue and lips went numb. Just touching the feathers of a Hooded Pitohui can cause eye irritation and sneezing. A rather interesting study was done on Pitohuis and Chewing Lice (the source I linked to above) that shows lice prefer to live in feathers that do not contain the toxin. So not only does it protect from larger predators that may want to eat the bird, but it protects them for parasites as well.
But now enough about the poison and on to some other information. As previously mentioned, Pitohuis consume beetle, though they also consume other insects, and will also eat fruits and seeds. All six species are brightly colored, typically with various shades of orange, red, and black. They lay 1-2 eggs at a time, and grow up to about 24cm in length.
Thanks again to Jon for the suggestion!