Columbia subject headings:
Birdhouses--Turkey--Istanbul--History.
Decoration and ornament, Architectural--Turkey--Istanbul.
Istanbul (Turkey)--Buildings, structures, etc.
Harvard subject headings:
Architecture, Ottoman--Turkey--Istanbul
Birdhouses--Turkey--İstanbul.
Decoration and ornament, Architectural--Turkey--Istanbul.
Princeton subject headings:
Architecture, Ottoman--Turkey--Istanbul.
Birdhouses--Turkey--Istanbul.