Called bird's eye or sometimes bird's footprint... but always "Norwegian" pattern.
Can't specifically find why... anyone?
UPDATE from 10E reader: "The LL Bean Sweater pattern is
called "Norwegian" because it's based on the body pattern of traditional
Norwegian "Lusekofte." These sweaters use a simple two-color pattern
(usually white/cream on black) for the body, and more complex stranded
colorwork for the yoke. Interestingly, "lusekofte" literally means "lice jacket." Evidently the single stitches reminded people of lice in bedding." NICE! haha LOVE this sort of background info...