As far as I know, no. Orange Bird is only at WDW. He is a mascot for the Florida Citrus Commission, so it wouldn't make much sense for him to represented here in California, you see.
I haven't seen the Orange Bird Mickey ears at DLR. Once in a while, DLR gets a few of the WDW items (e.g., Orange Bird plush, Figment ears), but they usually only get a very small quantity and they don't seem to get them restocked.