>
    <colgroup><col class="name" /><col class="desc" /></colgroup>
    <tr>
      <th>x</th>
      <td><p>An OrganizedBirds object</p></td>
    </tr>
    <tr>
      <th>grid</th>
      <td><p>A sf or SpatialPolygonsDataFrame object of the grid over the study area</p></td>
    </tr>
    <tr>
      <th>spillOver</th>
      <td><p>Specifies if the function should search for observations
with the same visitUID over several grid cell, and what to do with them.
It accepts <code><a href='https://rdrr.io/r/base/c.