Hallu wrote:Kids screaming isn't really similar to their call, and they don't move in big flocks. How big were the flocks ? How high were they flying ? Did you see them take off/land, what type of habitat was surrounding you (forest, plains, mallee ?) ? Were they big birds ? Are you sure they were mostly black birds ?
I spose it depends on what you consider constitutes a flock. They are regular visitors to our property in groups up to a dozen or so. They are particularly attracted to the pine trees when the cones are very young and create a real bombardment by cropping them off. At other times they are more common in pairs but their call is very distinctive. My other thought was choughs which are also very common in this area but they tend to be most raucous when on the ground and disturbed.
I do still like the idea of flying nuns though.