- Sykes,
William Henry (1832). "Catalogue of
birds of the
raptorial and
insessorial orders (systematically arranged,)
observed in the Dukhun". Proceedings...
- Sykes,
William Henry (1832). "Catalogue of
birds of the
raptorial and
insessorial orders (systematically arranged,)
observed in the Dukhun". Proceedings...
- Sykes,
William Henry (1832). "Catalogue of
birds of the
raptorial and
insessorial orders (systematically arranged,)
observed in the Dukhun". Proceedings...
- Sykes,
William Henry (1832). "Catalogue of
birds of the
raptorial and
insessorial orders (systematically arranged,)
observed in the Dukhun". Proceedings...
- Sykes,
William Henry (1832). "Catalogue of
birds of the
raptorial and
insessorial orders (systematically arranged,)
observed in the Dukhun". Proceedings...
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November 2021. Gould, J. (1836). "Characters of
several new
species of
Insessorial Birds,
including a new
genus (Stenorhynchus)".
Proceedings of the Zoological...
- 144–145. Sykes, W.H. (1830–1831). "Catalogue of
birds of the
raptorial and
insessorial orders (systematically arranged,)
observed in the
Dukhun by Lt. Col....
- Sykes,
William Henry (1832). "Catalogue of
birds of the
raptorial and
insessorial orders (systematically arranged,)
observed in the Dukhun". Proceedings...
