1. Bally, W. S. (1916 a): The breeding of Jackson's Whydahs. Bird Notes News 7: 209–214.
2. Ditto (1916 b): The breeding of a hybrid Crimson-crowned Weaver x Red-collared Whydah. Bird Notes News 7: 235–240.
3. Ditto (1918): Hybrid whydahs. Bird Notes News 1 (3rd ser.): 229–230.
4. Ditto (1926): IsPyromelana franciscana polygamous? Ibis 3/12: 628.
5. Bannerman, D. A. (1949): The birds of Tropical West Africa. Vol. 7 Oliver & Boyd, Edinburgh.