Alloparental behaviour, the temporary or permanent adoption of nonlinearly-related or entirely unrelated young through brooding, feeding or defending, is well known in birds (Riedman 1982). In penguins, alloparental care by conspecifics has been recorded in Emperor Aptenodytes forsteri, King A. patagon Pygoscelis adeliae and Little Eudyptula minor Penguins (Riedman 1982, Jouventin et al. 1995, Wienecke 1995, Lecomte Beaulieu et al. 2008). Alloparental behaviour by penguins towards young of other species, however, appears to be rare and has, to my knowledge, only been reported once, involving a King Penguin and a Subantarctic Skua Stercorarius antarcticus chick (Oosthuizen and de Bruyn 2009). Here I detail observations of an African Penguin Spheniscus demersus brooding and actively defending two Kelp Gull Larus dominicanus chicks from other gulls, including from the chicks' assumed true parents.