Hybrid or leucistic Canadian Goose?

Saw this polite lil birdie in a park today among a flock of Canadian geese.  Sizewise he's the same and the plumage patterns look near identical - he just has a brown head and neck with a pink bill and feet!  I tried to Google around with mixed results... so I'm here for a second opinion!  Leucistic Canadian or maybe just a hybrid?

Sorry for bad image quality, taken with a phone!

Edit// Photo of said goose next to a normal individual - just saw he has a little white "stripe" on his chest/belly.

20th June edit// Second fancily colored goose and a potential parent spotted!