></small>
    <div class="hidden name"><code>overlayBirds.Rd</code></div>
    </div>

    <div class="ref-description">
    <p>Make an overlay for an OrganizedBirds object and a grid to identify which
observations that fall into which grid cell.</p>
    </div>

    <pre class="usage"><span class='fu'>overlayBirds</span><span class='op'>(</span><span class='va'>x</span>, <span class='va'>grid</span>, spillOver <span class='op'>=</span> <span class='cn'>NULL</span>, cleanGrid <span class='op'>=</span> <span c