| Publication Type: | Journal Article |
| Year of Publication: | 1947 |
| Authors: | Gullion, GW |
| Journal: | The Auk |
| Volume: | 64 |
| Issue: | 3 |
| Date Published: | 1947 |
| ISBN Number: | 00048038 |
| Keywords: | Hirundinidae, Hirundo, Hirundo rustica, Tachycineta bicolor |
| URL: | http://www.jstor.org/stable/4080385 |
| Short Title: | The Auk |
Taxonomic name: