On 18 November 1967 a party of us, including Pierre Devillers, Alan Craig, and Cliff Lyons, were spending the afternoon checking for birds in the Tijuana River Valley to the south of Imperial Beach, San Diego County, California. At Windover Ranch, a small but well-watered avocado orchard situated just north of the Mexican border, I discovered a Wood Thrush Hylocichla mustelina.