Mikael Sigurðsson
Álft - whooper swan - Cygnus cygnus
The whooper swan is similar in appearance to the Bewick's swan. It is larger, however, at a length of 140–165 cm and a wingspan of 205–275 cm. Weight typically is in the range of 7.4–14 kg with an average of 9.8–11.4 kg for males and 8.2–9.2 kg for females. The verified record mass was 15.5 kg for a wintering male from Denmark. It is considered to be amongst the heaviest flying birds.
Álft - whooper swan - Cygnus cygnus
The whooper swan is similar in appearance to the Bewick's swan. It is larger, however, at a length of 140–165 cm and a wingspan of 205–275 cm. Weight typically is in the range of 7.4–14 kg with an average of 9.8–11.4 kg for males and 8.2–9.2 kg for females. The verified record mass was 15.5 kg for a wintering male from Denmark. It is considered to be amongst the heaviest flying birds.