| UID | |
|---|---|
| Historical Notes | |
| Record Source | |
| Source | local |
| Maintenance Status | new |
| Maintenance Agency | Iowa State University Library Special Collections and University Archives |
| Maintenance Event | |
| Authored | Robert L. Nelson letter to Peter C. Petersen regarding spring migration, June 14, 1963 |
| Contributed | |
| Related Documents | |
| Related Birds | |
| Related People | |
| Related Places | Rockford |
| Map |
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