Birding in BC Community

I saw these 4 at Discovery Island (Victoria) last weekend. Can anyone help with identifying? The only seabird that I could find with a white collar is a red-breasted merganser male but the bill colour is wrong and there is no crest.
Thanks

File2077 by Dennis McMillan, on Flickr

File2088 by Dennis McMillan, on Flickr

File2078 by Dennis McMillan, on Flickr

You might want to look up Brant (Branta bernicla).

Yes, these are Brant geese (Branta Bernicla 'nigricans').

Brant have 3 subspecies and the common subspecies here is "Black Brant" that range up and down the west coast of North America, breeding in Alaska. A few stop-over around locations in Victoria during migration but much larger numbers are found in Parksville and around the shore of the Fraser delta/boundry bay and other locations in Puget sound. Some populations over-winter in these areas.

Cheers,