Appears to be a yearling (i.e., hatched last year), based on the smudgy grey head and neck plumage; accompanied by two adults or near-adults (see https://inaturalist.ca/observations/222694670).
Two adults and three cygnets
Pair of trumpeter swans on Little Lake
Adults or near-adults, accompanied by what appeared to be a yearling (i.e., hatched last year; see https://inaturalist.ca/observations/222694668).
K38 and P18 with five newly hatched cyngets spotted at Hendrie Valley Marsh Sanctuary