it by each grid cell
      (<em>n.b.</em> the use of <code>spillOver</code> discussed under "Usage")</p></dd>
    <dt><code>grid</code></dt><dd><p>The sf from the input, optionally cleared of data</p></dd>
   <dt><code>nonEmptyGridCells</code></dt><dd><p>An integer vector of which grid cells that have observations</p></dd>
  
</dl>

    <h2 class="hasAnchor" id="details"><a class="anchor" href="#details"></a>Details</h2>

    <p>This function takes an OrganizedBirds object, created by
<code><a href='organiz