Yeah, you're likely right. ANd it's not the first time I've seen it

http://cache.daylife.com/imageserve/03bx2VO94YgFu/340x.jpg
http://www.acclaimimages.com/_galle...59_iditarod_dog_musher_randy_cummins.jpg

Maybe they prefer the long visor on calm days and will remove it when the wind picks up.