Correction

COMMENTARY. For the article “Avian chemical defense: Toxic birds not of a feather,” by Paul J. Weldon, which appeared in number 24, November 21, 2000, of Proc. Natl. Acad. Sci. USA (97, 12948–12949), the following corrections should be noted. Due to a printer's error, “homobatrachotoxinin” and “batrachotoxinin” were incorrectly inserted in place of “homobatrachotoxin” and “batrachotoxin,” respectively. The term “batrachotoxinin-A” was correct in the article.