Marabou (chocolate) factory was not sufficient for the growing demand, so in the 1970s production moved, after 60 years in one location, to newly-built premises in Upplands Väsby, where it remains today. At the end of the 1960s, the symbol of Marabou was changed from a stork to the marabou rounded “M”. It was designed by Sigvard Bernadotte. This also marked the beginning of the first commercials starring Yvonne Lombard who created the slogan "Mmm... Marabou!". Marabou chocolate is widely available in Sweden in assorted varieties. Freia and Marabou later merged, and, in 1993, were purchased by Kraft Foods for 3 billion
What Bird is That? kookaburra seated on and within a large red question mark. It contains 36 coloured plates of paintings of Australian birds by the author, as well as several black-and-white photographic plates of habitat. There were numerous reprints and revised editions in various formats produced well into the 1980s. The first edition was sponsored by the Gould League of Bird Lovers of New South Wales of which Cayley was a Council member. In return for its sponsorship, Cayley offered the Gould League four tenths of his 10% book royalty. However, initial sales were slow and in 1935 he sold his entire share