In our paper, we inadvertently left out the following acknowledgments. We are indebted to the staff of the USGS Bird Banding Lab for archiving, managing, and sharing data that enabled us to make large-scale geographic inferences about migratory connectivity for the Gray Catbird (Dumetella carolinensis). In addition, we thank the thousands of banders that spent countless hours banding birds and scheduling their data, without whom this manuscript would not have been possible.