these looks look like Barnacle x Canada (or Cackling) Goose hybrids to me. Please note:
brown breast, very large (rounded) white area on the head. Second bird has a white spot on the foread are ehead, a sign of Barnacle influnce, but white spots on the foreheads are present rarely in pure-looking Canadas, too.
All dark bill and all dark legs (what is visible of them) excludes the other frequent Canada Goose hybrid, Canada x Greylag.
Is the last sentence a failproof one? Yes, I think so, but if it is 100%, better wait for others to jump in.
Edit: some ssp/races of Canada Goose have a darker breast, but both birds here have a darker breast with a sharp, although slightly contrasting boarder to paler belly, good for hybrides, too. But I dont have enough experience to judge, if this a failproof criterea. And its one question, I hope to get an answer. Conclusion? I hope other to jump in. Thank you!