Brown Bear, Brown Bear, What Do You See? White Dog, Black Sheep, a Goldfish, a Teacher or a Mother, and Students or Children. The 1984 British edition of the book substitutes a monkey for the teacher. Carle explained that variations in text between editions (mostly on the last page) were due to Martin, and that he made new illustrations to go with the changes. Carle and Martin published three spin-off books: "Polar Bear, Polar Bear, What Do You Hear?" (1991) uses zoo animals and sounds; "Panda Bear, Panda Bear, What Do You See?" (2003), endangered species; and "Baby Bear, Baby Bear, What Do You See?" (2007), North American
Sooty thrush other thrushes such as the American robin. It forages on the ground, singly or in pairs, progressing in hops and dashes with frequent stops. It turns leaf litter seeking insects and spiders, and also eats small fruits, especially Ericaceae and " Solanum". The breeding season song is a gurgling squeaky "chuweek chuweek seechrrzit seechrrzit seechrrzit seechrrzit tseeur tseeur tseeur tseeur", and the call is a grating "grrrrkk". Sooty thrush The sooty thrush ("Turdus nigrescens") is a large thrush endemic to the highlands of Costa Rica and western Panama. It was formerly known as the sooty robin. This is an abundant