Renter: Existing cavities: According to Ducke (1900) and Graeffe (1902) it nests in crevices in stone walls, which are numerous in the Karst.
Nesting material: Unknown. (Ducke, 1900; Graeffe, 1902)
Renter: Existing cavities: According to Ducke (1900) and Graeffe (1902) it nests in crevices in stone walls, which are numerous in the Karst.
Nesting material: Unknown. (Ducke, 1900; Graeffe, 1902)
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