Modifier le style authoryear de biblatex

\documentclass[french]{article}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{geometry}
\usepackage{fourier, erewhon}
\usepackage[scaled =0.92]{cabin}
\usepackage{babel}
\usepackage[autostyle]{csquotes}% recommended in output (biblatex)
\usepackage[backend=biber, autolang=other, style =authoryear, sortcites, backref]{biblatex}
\setcounter{biburllcpenalty}{7000}
\setcounter{biburlucpenalty}{8000}
\def\UrlFont{\sffamily}

\DeclareCiteCommand{\parencite}[\mkbibbrackets]
{\usebibmacro{prenote}}%
{\usebibmacro{citeindex}%
\usebibmacro{cite}}
{\multicitedelim}
{\usebibmacro{postnote}}

\renewcommand*{\nameyeardelim}{\addcomma\space}
\AtBeginDocument{\protected \def\mkbibnamefamily#1{\textnohyphenation{#1}}}%
\AtBeginBibliography{%
\protected\def\mkbibnamefamily#1{%
\textsc{\textnohyphenation{#1}}}%
\renewcommand*{\mkbibnameprefix}[1]{#1}%
}

\usepackage{filecontents}

\begin{filecontents}{mabiblio.bib}
@BOOK{Dodgson,
AUTHOR = {Lewis Carroll},
TITLE = {The Hunting of the Snark},
YEAR = {1876},
PUBLISHER = {Macmillan},
LOCATION = {London}
}
@BOOK{Lear,
AUTHOR = {Edward Lear},
TITLE = {Les Sept familles du lac Pipple-Popple},
TITLEADDON = {(The History of the seven families of the lake Pipple-Popple)},
TRANSLATOR = {Simone Lamblin},
PUBLISHER = {Gallimard},
LOCATION = {Paris},
YEAR = {1978},
EDITION = {2},
}
@online{nonsense,
title = {International Owl \& Pussycat Day, 12 May},
year = 2011,
url = {https://teachingnonsenseinschools.wordpress.com},
urldate = {2010-09-30}
}
\end{filecontents}

\addbibresource{mabiblio.bib}

\begin{document}
\nocite{*}
Deux ouvrages indispensables: \parencite{Lear, Dodgson}.

\printbibliography%

\end{document}