Last weekend over a dozen four-legged, sniff-happy guests assailed a bed and breakfast on the Bolinas Mesa. There was not a bomb threat, or any cocaine. The 14 dogs that wandered throughout the Ocean Song Retreat were in search of the scent of birch.
A swab soaked in essential oil made from the pulverized bark of birch trees was hidden somewhere in Creta Pullen’s guest house. According to Candy Bennyi, a professional dog and nose…