documentclass{report}
usepackage[style=authoryear,
            citestyle=chicago-authordate,
            doi=false,
            backend=biber,
            maxnames=2,
            ibidtracker=constrict]{biblatex}
usepackage{xpatch}

begin{document}

   %remove parentheses from year
   xpatchbibmacro{date+extrayear}{%
      printtext[parens]%
   }{%
     setunit{addperiodspace}%
     printtext%
   }{}{}
   nocite{*}
   printbibliography

end{document}

usepackage[authordate,
            backend=biber,
            ]{biblatex-chicago}

documentclass[british]{article}
usepackage[T1]{fontenc}
usepackage[utf8]{inputenc}
usepackage{babel}
usepackage{csquotes}

usepackage[authordate,
            backend=biber,
            ]{biblatex-chicago}

addbibresource{biblatex-examples.bib}


begin{document}
autocite{sigfridsson,nussbaum}
printbibliography
end{document}

documentclass[british]{article}
usepackage[T1]{fontenc}
usepackage[utf8]{inputenc}
usepackage{babel}
usepackage{csquotes}

usepackage[style=windycity,
            reflist,
            autocite=inline,
            backend=biber,
            ]{biblatex}

addbibresource{biblatex-examples.bib}


begin{document}
autocite{sigfridsson,nussbaum}
printbibliography
end{document}