They must be given some kind of outside access, but in such confined spaces only few birds are ever able to actually make it outside. (vegansociety.com)
For example, the wall - hung vanity unit, with its extra storage, is a real bonus in such a confined space. (idealhome.co.uk)
Hitchcock and Swerling seem to know they can only last in such a confined space for so long. (thestopbutton.com)