Some more nice photos by Neal Preston from the same day, April 30, 1979:
 - Zappa and Bird Reynolds
 - Zappa holding a cat

Comments by Neal Preston:

"Those nutty, crazy Zappas," people would say with a snicker – that's the way people looked upon them at the time. I was shooting Frank for PEOPLE and he had been reading the Financial Times that morning. And who would think of Frank Zappa reading the Financial Times? After that I shot him playing pingpong (the shoot was for PEOPLE magazine, after all), and the bird was flying around the table – and flew right onto his head. I saw that, and said to Frank, "Let's pose the bird on your head for a tighter shot." The look on the bird's face is classic (I seem to remember the bird was named "Bird Reynolds") as if it's saying, "Who the f*** is this guy underneath me?"

Source: Charles Ulrich

Photographs by Harry Benson

The teenager enters the room carrying an electric guitar. “Dad?” he begins. “Yes, son?” the patriarch replies. “Is it all right” the lad asks politely, “if I use the Snork and Jade’s Burp?” “Sure, Dweez, go ahead.” (read more) 

Source: Steve Hecht