During a conversation at a family BBQ my nieces mentioned that they'd been told of a few birds which were poisonous - Masked Lapwings (the wing spurs Greg!) and Australian White Ibises (huh? Don't touch their heads apparently). This got me thinking... would they be poisonous or venomous, but...?
After a quick search I found that apart from more exotic New Guinean species, which contain a neurotoxin in their feathers and some tissues, a collected specimen of a Little Shrike-thrush was found to carry the same neurotoxin. The humble Little Shrike-thrush! Apparently the birds acquire the poison through the diet they consume. Defensive chemicals. Interesting.
I doubt the lapwing or ibis are in the same league.
Scientific name: Colluricincla megarhyncha
Location: Boreen Point, Australia.