Unknown skull

Unknown skull

Observation - Unknown skull. Description: Please help my 7 year old find out what this is! It is 9cm long and just over 4cm at the widest part of the head.The deepest part of the beak is 2cm and it is 2.5cm wide. Skull is very light. No sign of teeth, looks like a goose / swan or am I way off the

Please help my 7 year old find out what this is! It is 9cm long and just over 4cm at the widest part of the head.The deepest part of the beak is 2cm and it is 2.5cm wide. Skull is very light. No sign of teeth, looks like a goose / swan or am I way off the mark?