1. The Annals of Scottish Natural History. A Quarterly Magazine. Edinburgh. No. 50. 1904.
2. The Auk. A Quarterly Journal of Ornithology. Vol. XXI. No. 2. 1904.
3. Bulletin of the British Ornithologists' Club. No. CIV-CVII. 1904.
4. The Condor. A Magazine of Western Ornithology. Vol. VI. No. 2 u. 3. 1904.
5. Die Gefiederte Welt. Wochenschrift für Vogelliebhaber. Herausg. Karl Neunzig. Magdeburg (Creutz'sche Verlagshandlung). Jahrg. XXXIII. Hft. 12–21.