\documentclass{article}

\usepackage{datagidx}

\loadgidx{datagidx-test.dbtex}{Index}

\begin{document}

Reference some terms: \gls{duck}, \gls{bird}, \gls{parrot},
\gls{crocodile}, \gls{caiman}, \gls{alligator}.

\printterms[columns=1]

\end{document}
