Carl Linnaeus, The Lapland Journey, translated by Peter Graves (Edinburgh: Lockharton Press, 1995), p. 42.
Medelpad, 17/05/1732, ¶134:
I had scarcely gone beyond the boundary posts when I saw 2 ‘Lagopodes’ [Willow Grouse] walking on the highway but, since the road sloped so much, I could not get as near them with my gun as I needed to, so I inspected them through my spyglass. They were predominantly reddish, the wings, however, were white.