Hitting copy and paste works just as well, and any text field can use it.

When I began dragging the event a window popped up alerting me that I had been invited to the event and wasnt allowed to change it.

This window interfered with me dragging it off onto an e-mail.

I also tried this with an item from the birthday calendar from Address Book and got a similar window saying it was a read-only calendar.

Copying and pasting worked in both instances though (with a little weirdness with the birthday calendar), so that might be the better way to go about this.

I click on the List button (3rd from the right at the bottom right of the main window).

I select one or more events, Copy, and voil: one or more events have been copied to the clipboard.

One caveat with this is that sometimes the events run together; that is, the summary of one event will appear immediately after the description of the previous event.

Also, for some strange reason events do not copy in the same order as they are listed in iCal.

Copy Event In Outlook For Mac