Looks like a tundra, but could be a trumpeter?
Wasn't able to photograph them while their heads were exposed, but they had all black bills with v-shaped top of bill seen head on. Trumpeter is the expected species in this area.
Seen next to the boat ramp.
Trooper Swan is cross between native Trumpeter and Whooper Swan (Natl bird of Finland). Resident bird at Kellogg Bird Sanctuary
More than 80 adult and juvenile trumpeter swans wintered on the Severn River at Washago where the current was swift enough to keep the river from freezing. About one quarter of the birds were tagged.
Photo by Bill Thompson used with permission
X34 and family of 4 cygnets
Hybrids have been known at Deep Bay since 2006.
LaSalle Park, Burlington, ON, Canada
Didn't see his other four siblings or parents around.
All Observers of Z24:
https://www.inaturalist.org/observations?verifiable=any&place_id=any&field:Ontario%20Trumpeter%20Swan%20Wing%20Tag%20Number=Z24