On 13 December 1986 we found a Thick-billed Kingbird (Tyrannus crassirostris) in a dry wash dominated by paloverde (Cercidium sp.) and mesquite (Prosopis sp.), about 25 km south of La Paz, between the towns of San Pedro and El Triunfo, Baja California Sur, Mexico. The single individual was quietly perched most of the time it was under observation and only occasionally made short foraging flights. The diagnostic large black bill, dark forehead and “mask,” contrasting clear white throat and breast, and notched tail were seen at close range by several observers (C.T. Collins, P.H. Collins, B.W. Massey, K. Keane, and C. Boardman). On 5 January 1987 presumably the same individual was again seen at this site by C.T. Collins, J.L. Atwood, P.H. Collins, and E. Palacios.