In the article “Ornithology: British birds by number“ (Robert M. May Nature 404, 559–560; 2000), the examples of birds occurring through deliberate introduction and natural colonization were transposed in the Nature office. Little owls were a deliberate introduction, purple sandpipers a natural colonization.

Likewise, in “Palaeoanthropology: Coasting out of Africa” (Chris Stringer Nature 405, 24–27; 2000), mention of a Figure 3 should not have appeared.