On the First Primary in Passerine Birds
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| Description | article by Ernst Hartert in The Zoologist, 4th series vol 3, issue 693 (March, 1899) |
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| Publication date | March 1899 |
| Language | English |
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| Access work |
The Zoologist/4th series, vol 3 (1899)/Issue 693/On the First Primary in Passerine Birds, Hartert (Wikisource English) |
| Copyright status | |
| Missing/wrong data? | Edit Wikidata item |