[5]: 263 The cattle may be either horned or naturally polled; despite the breed name, the coat may be either red-and-white or black-and-white.

[6]: 88  The Red Troender, in turn, derived from cross-breeding in the nineteenth century of local Troender and Røros cattle with Ayrshire stock; it had later absorbed the Målselv (Målselvfe) breed of Tromsø and northern Norway.

[6]: 98  The Dølafe, originating from local cattle of south-east Norway, Telemark (Telemarksfe) and Ayrshire, was merged into the Norwegian Red in 1963.

[6]: 46  It was followed in 1968 by the South and West Norwegian or Sør og Vestlandsfe, which had been created in 1947 by fusion of the Vestland Fjord (Vestlandsk Fjordfe), the Vestland Red Polled (Vestlandsk Raudkolle) and the Lyngdal (Lyngdalsfe).

[5]: 263 The cattle may be either horned or naturally polled; despite the breed name, the coat may be either red-and-white or black-and-white.