Branta sandvicensis (Nene)
Discussion
I found it this may or june in almuñecar(Spain)Park Loro Sexi. Big feather-18cm Body feathers-9-10cm Alula-11cm Gray and white at the top in small feathers
Belen
I thought it was from branta leucopsis but the alula is bigger than the feather of the photo and is black at the top,not white,im confused...