Early descriptions of 'Birdie Blye' seem to favor the darker candidate: eg. rosy-carmine 1905, deep pink 1919, sometimes magenta 1929, carmine 1930, and carmine-pink 1936. I believe the darker 'Birdie Blye' in cultivation is at least partially from a re-introduction by the Huntington of my collection of an unknown shrub rose called "Ramacita" in a garden near Alamos, Sonora, Mexico in the 1970's.