| Publication Type: | Journal Article |
| Year of Publication: | 1959 |
| Authors: | Edwards, EP |
| Journal: | The Auk |
| Volume: | 76 |
| Issue: | 3 |
| Date Published: | 1959 |
| ISBN Number: | 00048038 |
| Keywords: | Apodidae, Apus, Apus apus, Guatemala, Hirundinidae, Hirundo, Hirundo rustica, Panyptila, Panyptila cayennensis |
| URL: | http://www.jstor.org/stable/4081816 |
| Short Title: | The Auk |