hope you enjoy your holidays on the Island!
I'm not a resident of Duncan but some suggestions
check out or google
-Centennial Park (Northern Mockingbird still there?)
-Somenos Marsh Boardwalk-Redhead reported on Cowichan Valley District Rare Bird Alert
-Toonie Irvine, a local and frequent contributor to weathernetwork gallery.
-bcbirdingvanisland AT yahoogroups DOT com
-if you have access to a vehicle, try the field area at Nanaimo River Estuary. always a hawk or owl and eagles present. also Buttertubs Marsh Park-a bird Sanctuary on the outskirts of Nanaimo.
-a day at the Raptors Centre