Bird's Plurality: Describing Groups of Birds

I have a cockatiel, but I've never been able to find any special name for a group of them. However, I have heard a "company of parrots." A couple more to add to the list:

A group of turkey vultures is usually called a "venue." If they are circling around in the air, they are a "kettle" (because the circling is reminiscent of bubbles in a kettle of boiling water). Sometimes, a group of vultures is also called a "wake", which I suppose it quite fitting, or a "committee."

A group of owls is called a "parliament" or a "wisdom."