In Australia, the Simon/Taylor version of "Mockingbird" charted simultaneously with another version - this one featuring the original lyrics - by Johnny O'Keefe sung with his resident background vocalist Margaret McLaren; the two versions were ranked in tandem on the charts, peaking at #8 for four weeks beginning in May 1974. O'Keefe, who had performed "Mockingbird" in 1964 as compere of the Sing Sing Sing musical show, had recorded the track with McLaren in October 1972, the track having a single release in 1973 and appearing on the local "hit parade" in Adelaide that November around the time the Simon/Taylor version was recorded; O'Keefe, who believed that the Simon/Taylor version was effectively a cover version resulting from Festival Records company selling the O'Keefe version to American record companies, lobbied the Minister for Media and the Broadcasting Control Board to have his version of "Mockingbird" receive at least equal broadcasting time with the Simon/Taylor version on Australian radio. 
Mockingbirds Beaus & Arrows is not only a wonderful show dog, he has an outstanding loving, want to please disposition. He is more than just a dog, he makes me smile, he makes me want to hug him & he enjoys every minute of his hugs. He is strong, willing & intelligent. He loves to herd cattle. He loves to please you every day in every way. But he will outsmart you if you let him. I swear he understands what we say. The other day, my friend said, "If Beau new he could just jump right out of that dutch door gate, you couldn't keep him in." After she left, I went in his pen to rake and there he was trying to jump out that darn gate. I said, "Beau, NO!" He quit, but I swear he understood that he could get out if he wanted.