A noosed female Crotophytus collaris bicinclores Smith and Tanner voiced an alarm similar to that of C. wislizeni.
Smith, Nathan M.
"Observation of voice in the western collared lizard Crotaphytus collaris bicinctores,"
Great Basin Naturalist: Vol. 34
, Article 5.
Available at: http://scholarsarchive.byu.edu/gbn/vol34/iss4/5