C. A. Johns,
British Birds in Their Haunts
“ The Mountain Sparrow seems scarcely to deserve its name, as it is by no means confined to mountainous districts. It is abundant all over the European continent, and is to be met with here and there in many parts of England in the east of Scotland and of late years in Ireland and in the Hebrides; but it is nowhere so abundant as the House Sparrow, which it resembles in all respects, except that the head is of a bright chestnut colour, and the neck wears a white collar. I have never seen it except in society with the common species, and could never detect any difference either in flight or note ”
