He initially sent letters containing his observations to other American naturalists such as Joel A. Allen, Thomas M. Brewer, Elliott Coues, and Robert Ridgway, who would publish them in American naturalist magazines like Bulletin of the Nuttall Ornithological Club and the American Naturalist.
Inicialmente enviou cartas que conteñan as súas observacións ornitolóxicas a naturalistas estadounidenses como Joel A. Allen, Thomas M. Brewer, Elliott Coues e Robert Ridgway, que as publicarían en revistas científicas como o Bulletin of the Nuttall Ornithological Club e The American Naturalist.