Notes on the Height at which Birds migrate
| Image |  |
|---|---|
| Description | journal article from 'Ibis' published in 1919 |
| Author/s |
author: Collingwood Ingram |
| Publication date | 1919 |
| Language | English |
| Country of origin | |
| Wikipedia link | |
| Access work |
https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1474-919X.1919.tb02887.x |
| Copyright status |
public domain in United States. |
| Missing/wrong data? | Edit Wikidata item |