Elusive Rosefinch on Carmel Head

Spent the morning on my usual circuit of Carmel Head; just as I was about to leave the plantation I picked up an unusual song from the seaward end of the pines. It took me a few minutes before its penny dropped as to what is was - a Common Rosefinch. It was moving through the trees keeping out of sight, but sang about half a dozen times and only once, briefly, came into view just long enough to confirm it was a first year bird lacking the red of an adult. Unfortunately I neither saw or heard it again, despite searching for it for the next 2 hours. A flock of 16 x-bills, which landed briefly in the plantation where the only other birds of note.